wx.DateTime¶

wx.DateTime class represents an absolute moment in time.

The type DateTime_t is typedefed as unsigned short and is used to contain the number of years, hours, minutes, seconds and milliseconds.

Global constant wx.DefaultDateTime and synonym for it wx.InvalidDateTime are defined. This constant will be different from any valid wx.DateTime object.

Static Functions¶

All static functions either set or return the static variables of wx.DateSpan (the country), return the current moment, year, month or number of days in it, or do some general calendar-related actions. Please note that although several function accept an extra Calendar parameter, it is currently ignored as only the Gregorian calendar is supported. Future versions will support other calendars.

Date Formatting and Parsing¶

The date formatting and parsing functions convert wx.DateTime objects to and from text. The conversions to text are mostly trivial: you can either do it using the default date and time representations for the current locale ( FormatDate and FormatTime), using the international standard representation defined by ISO 8601 ( FormatISODate, FormatISOTime and FormatISOCombined) or by specifying any format at all and using Format directly. The conversions from text are more interesting, as there are much more possibilities to care about. The simplest cases can be taken care of with ParseFormat which can parse any date in the given (rigid) format. ParseRfc822Date is another function for parsing dates in predefined format strptime(3)-like format strings used by Format, hence the need for a separate function. But the most interesting functions are ParseTime, ParseDate and ParseDateTime. They try to parse the date and time (or only one of them) in ‘free’ format, i.e. allow them to be specified in any of possible ways. These functions will usually be used to parse the (interactive) user input which is not bound to be in any predefined format. As an example, ParseDate can parse the strings such as “tomorrow”, “March first” and even “next Sunday”. Finally notice that each of the parsing functions is available in several overloads: if the input string is a narrow ( char ) string, then a narrow pointer is returned. If the input string is a wide string, a wide int pointer is returned. Finally, if the input parameter is a String , a narrow int pointer is also returned for backwards compatibility but there is also an additional argument of String.const_iterator type in which, if it is not None, an iterator pointing to the end of the scanned string part is returned.

Class Hierarchy¶

Inheritance diagram for class DateTime:

Methods Summary¶

`__init__`	Default constructor.
`Add`	Adds the given date span to this object.
`ConvertYearToBC`	Converts the year in absolute notation (i.e. a number which can be negative, positive or zero) to the year in BC/AD notation.
`DiffAsDateSpan`	Returns the difference between this object and dt as a wx.DateSpan.
`Format`	This function does the same as the standard `ANSI` C `strftime(3)` function (http://www.cplusplus.com/reference/clibrary/ctime/strftime.html).
`FormatDate`	Identical to calling `Format` with `"%x"` argument (which means “preferred date representation for the current locale”).
`FormatISOCombined`	Returns the combined date-time representation in the `ISO` 8601 format `"YYYY-MM-DDTHH:MM:SS"` .
`FormatISODate`	This function returns the date representation in the `ISO` 8601 format `"YYYY-MM-DD"` .
`FormatISOTime`	This function returns the time representation in the `ISO` 8601 format `"HH:MM:SS"` .
`FormatTime`	Identical to calling `Format` with `"%X"` argument (which means “preferred time representation for the current locale”).
`FromDMY`	Construct a `DateTime` using the supplied parameters.
`FromHMS`	Construct a `DateTime` equal to `Today` () with the time set to the supplied parameters.
`FromJDN`	Construct a `DateTime` from a Julian Day Number.
`FromTimeT`	Construct a `DateTime` from a C `time_t` value, the number of seconds since the epoch.
`FromTimezone`	Transform the date from the given time zone to the local one.
`GetAmPmStrings`	Returns the translations of the strings `AM` and `PM` used for time formatting for the current locale.
`GetAsDOS`	Returns the date and time in `DOS` format.
`GetBeginDST`	Get the beginning of `DST` for the given country in the given year (current one by default).
`GetCentury`	Returns the century of this date.
`GetCountry`	Returns the current default country.
`GetCurrentMonth`	Get the current month in given calendar (only Gregorian is currently supported).
`GetCurrentYear`	Get the current year in given calendar (only Gregorian is currently supported).
`GetDateOnly`	Returns the object having the same date component as this one but time of 00:00:00.
`GetDay`	Returns the day in the given timezone (local one by default).
`GetDayOfYear`	Returns the day of the year (in `1-366` range) in the given timezone (local one by default).
`GetEndDST`	Returns the end of `DST` for the given country in the given year (current one by default).
`GetEnglishMonthName`	Return the standard English name of the given month.
`GetEnglishWeekDayName`	Return the standard English name of the given week day.
`GetHour`	Returns the hour in the given timezone (local one by default).
`GetJDN`	Synonym for `GetJulianDayNumber` .
`GetJulianDayNumber`	Returns the `JDN` corresponding to this date.
`GetLastMonthDay`	Returns the copy of this object to which `SetToLastMonthDay` was applied.
`GetLastWeekDay`	Returns the copy of this object to which `SetToLastWeekDay` was applied.
`GetMJD`	Synonym for `GetModifiedJulianDayNumber` .
`GetMillisecond`	Returns the milliseconds in the given timezone (local one by default).
`GetMinute`	Returns the minute in the given timezone (local one by default).
`GetModifiedJulianDayNumber`	Returns the “Modified Julian Day Number” (`MJD`) which is, by definition, is equal to `JDN` - 2400000.5.
`GetMonth`	Returns the month in the given timezone (local one by default).
`GetMonthName`	Gets the full (default) or abbreviated name of the given month.
`GetNextWeekDay`	Returns the copy of this object to which `SetToNextWeekDay` was applied.
`GetNumberOfDays`	Returns the number of days in the given month of the given year.
`GetPrevWeekDay`	Returns the copy of this object to which `SetToPrevWeekDay` was applied.
`GetRataDie`	Return the Rata Die number of this date.
`GetSecond`	Returns the seconds in the given timezone (local one by default).
`GetTicks`	Returns the number of seconds since Jan 1, 1970 `UTC`.
`GetTimeNow`	Returns the current time.
`GetTm`	Returns broken down representation of the date and time.
`GetWeekDay`	Returns the week day in the given timezone (local one by default).
`GetWeekDayInSameWeek`	Returns the copy of this object to which `SetToWeekDayInSameWeek` was applied.
`GetWeekDayName`	Gets the full (default) or abbreviated name of the given week day.
`GetWeekOfMonth`	Returns the ordinal number of the week in the month (in `1-5` range).
`GetWeekOfYear`	Returns the number of the week of the year this date is in.
`GetYear`	Returns the year in the given timezone (local one by default).
`GetYearDay`	Returns the copy of this object to which `SetToYearDay` was applied.
`IsBetween`	Returns `True` if `IsStrictlyBetween` is `True` or if the date is equal to one of the limit values.
`IsDST`	Returns `True` if the `DST` is applied for this date in the given country.
`IsDSTApplicable`	Returns `True` if `DST` was used in the given year (the current one by default) in the given country.
`IsEarlierThan`	Returns `True` if this date precedes the given one.
`IsEqualTo`	Returns `True` if the two dates are strictly identical.
`IsEqualUpTo`	Returns `True` if the date is equal to another one up to the given time interval, i.e. if the absolute difference between the two dates is less than this interval.
`IsLaterThan`	Returns `True` if this date is later than the given one.
`IsLeapYear`	Returns `True` if the year is a leap one in the specified calendar.
`IsSameDate`	Returns `True` if the date is the same without comparing the time parts.
`IsSameTime`	Returns `True` if the time is the same (although dates may differ).
`IsStrictlyBetween`	Returns `True` if this date lies strictly between the two given dates.
`IsValid`	Returns `True` if the object represents a valid time moment.
`IsWestEuropeanCountry`	This function returns `True` if the specified (or default) country is one of Western European ones.
`IsWorkDay`	Returns `True` is this day is not a holiday in the given country.
`MakeFromTimezone`	Same as `FromTimezone` but modifies the object in place.
`MakeTimezone`	Modifies the object in place to represent the date in another time zone.
`MakeUTC`	This is the same as calling `MakeTimezone` with the argument `GMT0` .
`Now`	Returns the object corresponding to the current time.
`ParseDate`	This function is like `ParseDateTime` , but it only allows the date to be specified.
`ParseDateTime`	Parses the string `datetime` containing the date and time in free format.
`ParseFormat`	This function parses the string date according to the given format.
`ParseISOCombined`	This function parses the string containing the date and time in `ISO` 8601 combined format `"YYYY-MM-DDTHH:MM:SS"` .
`ParseISODate`	This function parses the date in `ISO` 8601 format `"YYYY-MM-DD"` .
`ParseISOTime`	This function parses the time in `ISO` 8601 format `"HH:MM:SS"` .
`ParseRfc822Date`	Parses the string date looking for a date formatted according to the `RFC` 822 in it.
`ParseTime`	This functions is like `ParseDateTime` , but only allows the time to be specified in the input string.
`ResetTime`	Reset time to midnight (00:00:00) without changing the date.
`Set`	Sets the date and time from the parameters.
`SetHMS`	Sets the date to be equal to `Today` and the time from supplied parameters.
`SetJDN`	Sets the date from the so-called Julian Day Number.
`SetTimeT`	Constructs the object from timet value holding the number of seconds since Jan 1, 1970 `UTC`.
`SetTm`	Sets the date and time from the broken down representation in the ` `wx.DateTime.Tm` ` structure.
`SetCountry`	Sets the country to use by default.
`SetDay`	Sets the day without changing other date components.
`SetFromDOS`	Sets the date from the date and time in `DOS` format.
`SetHour`	Sets the hour without changing other date components.
`SetMillisecond`	Sets the millisecond without changing other date components.
`SetMinute`	Sets the minute without changing other date components.
`SetMonth`	Sets the month without changing other date components.
`SetSecond`	Sets the second without changing other date components.
`SetToCurrent`	Sets the date and time of to the current values.
`SetToLastMonthDay`	Sets the date to the last day in the specified month (the current one by default).
`SetToLastWeekDay`	The effect of calling this function is the same as of calling `SetToWeekDay` (-1, weekday, month, year).
`SetToNextWeekDay`	Sets the date so that it will be the first weekday following the current date.
`SetToPrevWeekDay`	Sets the date so that it will be the last weekday before the current date.
`SetToWeekDay`	Sets the date to the n-th weekday in the given month of the given year (the current month and year are used by default).
`SetToWeekDayInSameWeek`	Adjusts the date so that it will still lie in the same week as before, but its week day will be the given one.
`SetToWeekOfYear`	Set the date to the given weekday in the week number numWeek of the given year .
`SetToYearDay`	Sets the date to the day number yday in the same year (i.e. unlike the other functions, this one does not use the current year).
`SetYear`	Sets the year without changing other date components.
`Subtract`	Subtracts the given time span from this object.
`ToTimezone`	Transform the date to the given time zone.
`ToUTC`	This is the same as calling `ToTimezone` with the argument `GMT0` .
`Today`	Returns the object corresponding to the midnight of the current day (i.e. the same as `wx.Now` , but the time part is set to 0).
`UNow`	Returns the object corresponding to the current `UTC` time including the milliseconds.
`__repr__`
`__str__`

Properties Summary¶

`DayOfYear`	See `GetDayOfYear`
`JDN`	See `GetJDN` and `SetJDN`
`JulianDayNumber`	See `GetJulianDayNumber`
`LastMonthDay`	See `GetLastMonthDay`
`MJD`	See `GetMJD`
`ModifiedJulianDayNumber`	See `GetModifiedJulianDayNumber`
`RataDie`	See `GetRataDie`
`Ticks`	See `GetTicks`
`WeekOfMonth`	See `GetWeekOfMonth`
`WeekOfYear`	See `GetWeekOfYear`
`day`	See `GetDay` and `SetDay`
`hour`	See `GetHour` and `SetHour`
`millisecond`	See `GetMillisecond` and `SetMillisecond`
`minute`	See `GetMinute` and `SetMinute`
`month`	See `GetMonth` and `SetMonth`
`second`	See `GetSecond` and `SetSecond`
`year`	See `GetYear` and `SetYear`

Class API¶

class wx.DateTime(object)¶

Possible constructors:

DateTime()

DateTime(date)

DateTime(day, month, year=Inv_Year, hour=0, minute=0, second=0,
         millisec=0)

DateTime class represents an absolute moment in time.

Methods¶

__init__(self, *args, **kw)¶

Overloaded Implementations:

__init__ (self)

Default constructor.

Use one of the Set functions to initialize the object later.

__init__ (self, date)

Copy constructor.

Parameters:	date (wx.DateTime) –

__init__ (self, day, month, year=Inv_Year, hour=0, minute=0, second=0, millisec=0)

Same as Set .

Parameters:	day (int) – month (DateTime.Month) – year (int) – hour (int) – minute (int) – second (int) – millisec (int) –

Add(self, *args, **kw)¶

Overloaded Implementations:

Add (self, diff)

Adds the given date span to this object.

Parameters:	diff (wx.DateSpan) –
Return type:	wx.DateTime

Add (self, diff)

Adds the given time span to this object.

Parameters:	diff (wx.TimeSpan) –
Return type:	wx.DateTime

static ConvertYearToBC(year)¶

Converts the year in absolute notation (i.e. a number which can be negative, positive or zero) to the year in BC/AD notation.

For the positive years, nothing is done, but the year 0 is year 1 BC and so for other years there is a difference of 1.

This function should be used like this:

dt = wx.DateTimeFromDMY(8, 5, 1977)
y = dt.GetYear()
epoch = (y > 0 and ["AD"] or ["BC"])[0]
print "The year is %d%s"%(wx.DateTime.ConvertYearToBC(y), epoch)

Parameters:	year (int) –
Return type:	int

DiffAsDateSpan(self, dt)¶

Returns the difference between this object and dt as a wx.DateSpan.

This method allows to find the number of entire years, months, weeks and days between dt and this date.

Parameters:	dt (wx.DateTime) –
Return type:	wx.DateSpan

New in version 2.9.5.

Format(self, format=DefaultDateTimeFormat, tz=Local)¶

This function does the same as the standard ANSI C strftime(3) function (http://www.cplusplus.com/reference/clibrary/ctime/strftime.html).

Please see its description for the meaning of format parameter.

Notice that POSIX "%g" , "%G" , "%V" and "%z" format specifiers are supported even if the standard library doesn’t support them (e.g. MSVC).

It also accepts a few Widgets-specific extensions: you can optionally specify the width of the field to follow using printf(3)-like syntax and the format specification "%l" can be used to get the number of milliseconds.

Parameters:	format (string) – tz (wx.DateTime.TimeZone) –
Return type:	`string`

See also

ParseFormat

FormatDate(self)¶

Identical to calling Format with "%x" argument (which means “preferred date representation for the current locale”).

Return type:	`string`

FormatISOCombined(self, sep='T')¶

Returns the combined date-time representation in the ISO 8601 format "YYYY-MM-DDTHH:MM:SS" .

The sep parameter default value produces the result exactly corresponding to the ISO standard, but it can also be useful to use a space as separator if a more human-readable combined date-time representation is needed.

Parameters:	sep (int) –
Return type:	`string`

FormatISODate(self)¶

This function returns the date representation in the ISO 8601 format "YYYY-MM-DD" .

Return type:	`string`

FormatISOTime(self)¶

This function returns the time representation in the ISO 8601 format "HH:MM:SS" .

Return type:	`string`

FormatTime(self)¶

Identical to calling Format with "%X" argument (which means “preferred time representation for the current locale”).

Return type:	`string`

static FromDMY(day, month, year=Inv_Year, hour=0, minute=0, second=0, millisecond=0)¶

Construct a DateTime using the supplied parameters.

Return type:	wx.DateTime

static FromHMS(hour, minute=0, second=0, millisecond=0)¶

Construct a DateTime equal to Today () with the time set to the supplied parameters.

Return type:	wx.DateTime

static FromJDN(jdn)¶

Construct a DateTime from a Julian Day Number.

By definition, the Julian Day Number, usually abbreviated as JDN, of a particular instant is the fractional number of days since 12 hours Universal Coordinated Time (Greenwich mean noon) on January 1 of the year -4712 in the Julian proleptic calendar.

Return type:	wx.DateTime

static FromTimeT(timet)¶

Construct a DateTime from a C time_t value, the number of seconds since the epoch.

Return type:	wx.DateTime

FromTimezone(self, tz, noDST=False)¶

Transform the date from the given time zone to the local one.

If noDST is True, no DST adjustments will be made.

Notice using wx.DateTime.Local for tz parameter doesn’t really make sense and may result in unexpected results as it will return a different object when DST is in use and noDST has its default value of False.

Parameters:	tz (wx.DateTime.TimeZone) – noDST (bool) –
Return type:	wx.DateTime
Returns:	The date adjusted by the different between the given and the local time zones.

static GetAmPmStrings()¶

Returns the translations of the strings AM and PM used for time formatting for the current locale.

Either of the pointers may be None if the corresponding value is not needed.

Return type:	tuple
Returns:	( am, pm )

GetAsDOS(self)¶

Returns the date and time in DOS format.

Return type:	int

static GetBeginDST(year=Inv_Year, country=Country_Default)¶

Get the beginning of DST for the given country in the given year (current one by default).

This function suffers from limitations described in the DST overview.

Parameters:	year (int) – country (Country) –
Return type:	wx.DateTime

See also

GetEndDST

GetCentury(self, tz=Local)¶

Returns the century of this date.

Parameters:	tz (wx.DateTime.TimeZone) –
Return type:	int

static GetCountry()¶

Returns the current default country.

The default country is used for DST calculations, for example.

Return type:	wx.DateTime.Country

See also

SetCountry

static GetCurrentMonth(cal=Gregorian)¶

Get the current month in given calendar (only Gregorian is currently supported).

Parameters:	cal (Calendar) –
Return type:	wx.DateTime.Month

static GetCurrentYear(cal=Gregorian)¶

Get the current year in given calendar (only Gregorian is currently supported).

Parameters:	cal (Calendar) –
Return type:	int

GetDateOnly(self)¶

Returns the object having the same date component as this one but time of 00:00:00.

Return type:	wx.DateTime

New in version 2.8.2.

See also

ResetTime

GetDay(self, tz=Local)¶

Returns the day in the given timezone (local one by default).

Parameters:	tz (wx.DateTime.TimeZone) –
Return type:	intshort

GetDayOfYear(self, tz=Local)¶

Returns the day of the year (in 1-366 range) in the given timezone (local one by default).

Parameters:	tz (wx.DateTime.TimeZone) –
Return type:	intshort

static GetEndDST(year=Inv_Year, country=Country_Default)¶

Returns the end of DST for the given country in the given year (current one by default).

Parameters:	year (int) – country (Country) –
Return type:	wx.DateTime

See also

GetBeginDST

static GetEnglishMonthName(month, flags=Name_Full)¶

Return the standard English name of the given month.

This function always returns “January” or “Jan” for January, use GetMonthName to retrieve the name of the month in the users current locale.

Parameters:	month (DateTime.Month) – One of `wx.DateTime.Jan` , ..., `wx.DateTime.Dec` values. flags (NameFlags) – Either Name_Full (default) or Name_Abbr.
Return type:	`string`

New in version 2.9.0.

See also

GetEnglishWeekDayName

static GetEnglishWeekDayName(weekday, flags=Name_Full)¶

Return the standard English name of the given week day.

This function always returns “Monday” or “Mon” for Monday, use GetWeekDayName to retrieve the name of the month in the users current locale.

Parameters:	weekday (DateTime.WeekDay) – One of `wx.DateTime.Sun` , ..., `wx.DateTime.Sat` values. flags (NameFlags) – Either Name_Full (default) or Name_Abbr.
Return type:	`string`

New in version 2.9.0.

See also

GetEnglishMonthName

GetHour(self, tz=Local)¶

Returns the hour in the given timezone (local one by default).

Parameters:	tz (wx.DateTime.TimeZone) –
Return type:	intshort

GetJDN(self)¶

Synonym for GetJulianDayNumber .

Return type:	float

GetJulianDayNumber(self)¶

Returns the JDN corresponding to this date.

Beware of rounding errors!

Return type:	float

See also

GetModifiedJulianDayNumber

GetLastMonthDay(self, month=Inv_Month, year=Inv_Year)¶

Returns the copy of this object to which SetToLastMonthDay was applied.

Parameters:	month (DateTime.Month) – year (int) –
Return type:	wx.DateTime

GetLastWeekDay(self, weekday, month=Inv_Month, year=Inv_Year)¶

Returns the copy of this object to which SetToLastWeekDay was applied.

Parameters:	weekday (DateTime.WeekDay) – month (DateTime.Month) – year (int) –
Return type:	wx.DateTime

GetMJD(self)¶

Synonym for GetModifiedJulianDayNumber .

Return type:	float

GetMillisecond(self, tz=Local)¶

Returns the milliseconds in the given timezone (local one by default).

Parameters:	tz (wx.DateTime.TimeZone) –
Return type:	intshort

GetMinute(self, tz=Local)¶

Returns the minute in the given timezone (local one by default).

Parameters:	tz (wx.DateTime.TimeZone) –
Return type:	intshort

GetModifiedJulianDayNumber(self)¶

Returns the “Modified Julian Day Number” (MJD) which is, by definition, is equal to JDN - 2400000.5.

The MJDs are simpler to work with as the integral MJDs correspond to midnights of the dates in the Gregorian calendar and not the noons like JDN. The MJD 0 represents Nov 17, 1858.

Return type:	float

GetMonth(self, tz=Local)¶

Returns the month in the given timezone (local one by default).

Parameters:	tz (wx.DateTime.TimeZone) –
Return type:	wx.DateTime.Month

static GetMonthName(month, flags=Name_Full)¶

Gets the full (default) or abbreviated name of the given month.

This function returns the name in the current locale, use GetEnglishMonthName to get the untranslated name if necessary.

Parameters:	month (DateTime.Month) – One of `wx.DateTime.Jan` , ..., `wx.DateTime.Dec` values. flags (NameFlags) – Either Name_Full (default) or Name_Abbr.
Return type:	`string`

See also

GetWeekDayName

GetNextWeekDay(self, weekday)¶

Returns the copy of this object to which SetToNextWeekDay was applied.

Parameters:	weekday (DateTime.WeekDay) –
Return type:	wx.DateTime

static GetNumberOfDays(month, year=Inv_Year, cal=Gregorian)¶

Returns the number of days in the given month of the given year.

The only supported value for cal currently is Gregorian .

Parameters:	month (DateTime.Month) – year (int) – cal (Calendar) –
Return type:	intshort

GetPrevWeekDay(self, weekday)¶

Returns the copy of this object to which SetToPrevWeekDay was applied.

Parameters:	weekday (DateTime.WeekDay) –
Return type:	wx.DateTime

GetRataDie(self)¶

Return the Rata Die number of this date.

By definition, the Rata Die number is a date specified as the number of days relative to a base date of December 31 of the year 0. Thus January 1 of the year 1 is Rata Die day 1.

Return type:	float

GetSecond(self, tz=Local)¶

Returns the seconds in the given timezone (local one by default).

Parameters:	tz (wx.DateTime.TimeZone) –
Return type:	intshort

GetTicks(self)¶

Returns the number of seconds since Jan 1, 1970 UTC.

An assert failure will occur if the date is not in the range covered by time_t type, use GetValue() if you work with dates outside of it.

Return type:	int

static GetTimeNow()¶

Returns the current time.

Return type:	int

GetTm(self, tz=Local)¶

Returns broken down representation of the date and time.

Parameters:	tz (wx.DateTime.TimeZone) –
Return type:	wx.DateTime.Tm

GetWeekDay(self, *args, **kw)¶

Overloaded Implementations:

GetWeekDay (self, tz=Local)

Returns the week day in the given timezone (local one by default).

Parameters:	tz (wx.DateTime.TimeZone) –
Return type:	wx.DateTime.WeekDay

GetWeekDay (self, weekday, n=1, month=Inv_Month, year=Inv_Year)

Returns the copy of this object to which SetToWeekDay was applied.

Parameters:	weekday (DateTime.WeekDay) – n (int) – month (DateTime.Month) – year (int) –
Return type:	wx.DateTime

GetWeekDayInSameWeek(self, weekday, flags=Monday_First)¶

Returns the copy of this object to which SetToWeekDayInSameWeek was applied.

Parameters:	weekday (DateTime.WeekDay) – flags (WeekFlags) –
Return type:	wx.DateTime

static GetWeekDayName(weekday, flags=Name_Full)¶

Gets the full (default) or abbreviated name of the given week day.

This function returns the name in the current locale, use GetEnglishWeekDayName to get the untranslated name if necessary.

Parameters:	weekday (DateTime.WeekDay) – One of `wx.DateTime.Sun` , ..., `wx.DateTime.Sat` values. flags (NameFlags) – Either Name_Full (default) or Name_Abbr.
Return type:	`string`

See also

GetMonthName

GetWeekOfMonth(self, flags=Monday_First, tz=Local)¶

Returns the ordinal number of the week in the month (in 1-5 range).

As GetWeekOfYear , this function supports both conventions for the week start.

Parameters:	flags (WeekFlags) – tz (wx.DateTime.TimeZone) –
Return type:	intshort

GetWeekOfYear(self, flags=Monday_First, tz=Local)¶

Returns the number of the week of the year this date is in.

The first week of the year is, according to international standards, the one containing Jan 4 or, equivalently, the first week which has Thursday in this year. Both of these definitions are the same as saying that the first week of the year must contain more than half of its days in this year. Accordingly, the week number will always be in 1-53 range (52 for non-leap years).

The function depends on the week start convention specified by the flags argument but its results for Sunday_First are not well-defined as the ISO definition quoted above applies to the weeks starting on Monday only.

Parameters:	flags (WeekFlags) – tz (wx.DateTime.TimeZone) –
Return type:	intshort

GetYear(self, tz=Local)¶

Returns the year in the given timezone (local one by default).

Parameters:	tz (wx.DateTime.TimeZone) –
Return type:	int

GetYearDay(self, yday)¶

Returns the copy of this object to which SetToYearDay was applied.

Parameters:	yday (int) –
Return type:	wx.DateTime

IsBetween(self, t1, t2)¶

Returns True if IsStrictlyBetween is True or if the date is equal to one of the limit values.

Parameters:	t1 (wx.DateTime) – t2 (wx.DateTime) –
Return type:	bool

See also

IsStrictlyBetween

IsDST(self, country=Country_Default)¶

Returns True if the DST is applied for this date in the given country.

Parameters:	country (Country) –
Return type:	int

See also

GetBeginDST , GetEndDST

static IsDSTApplicable(year=Inv_Year, country=Country_Default)¶

Returns True if DST was used in the given year (the current one by default) in the given country.

Parameters:	year (int) – country (Country) –
Return type:	bool

IsEarlierThan(self, datetime)¶

Returns True if this date precedes the given one.

Parameters:	datetime (wx.DateTime) –
Return type:	bool

IsEqualTo(self, datetime)¶

Returns True if the two dates are strictly identical.

Parameters:	datetime (wx.DateTime) –
Return type:	bool

IsEqualUpTo(self, dt, ts)¶

Returns True if the date is equal to another one up to the given time interval, i.e. if the absolute difference between the two dates is less than this interval.

Parameters:	dt (wx.DateTime) – ts (wx.TimeSpan) –
Return type:	bool

IsLaterThan(self, datetime)¶

Returns True if this date is later than the given one.

Parameters:	datetime (wx.DateTime) –
Return type:	bool

static IsLeapYear(year=Inv_Year, cal=Gregorian)¶

Returns True if the year is a leap one in the specified calendar.

This functions supports Gregorian and Julian calendars.

Parameters:	year (int) – cal (Calendar) –
Return type:	bool

IsSameDate(self, dt)¶

Returns True if the date is the same without comparing the time parts.

Parameters:	dt (wx.DateTime) –
Return type:	bool

IsSameTime(self, dt)¶

Returns True if the time is the same (although dates may differ).

Parameters:	dt (wx.DateTime) –
Return type:	bool

IsStrictlyBetween(self, t1, t2)¶

Returns True if this date lies strictly between the two given dates.

Parameters:	t1 (wx.DateTime) – t2 (wx.DateTime) –
Return type:	bool

See also

IsBetween

IsValid(self)¶

Returns True if the object represents a valid time moment.

Return type:	bool

static IsWestEuropeanCountry(country=Country_Default)¶

This function returns True if the specified (or default) country is one of Western European ones.

It is used internally by wx.DateTime to determine the DST convention and date and time formatting rules.

Parameters:	country (Country) –
Return type:	bool

IsWorkDay(self, country=Country_Default)¶

Returns True is this day is not a holiday in the given country.

Parameters:	country (Country) –
Return type:	bool

MakeFromTimezone(self, tz, noDST=False)¶

Same as FromTimezone but modifies the object in place.

Parameters:	tz (wx.DateTime.TimeZone) – noDST (bool) –
Return type:	wx.DateTime

MakeTimezone(self, tz, noDST=False)¶

Modifies the object in place to represent the date in another time zone.

If noDST is True, no DST adjustments will be made.

Parameters:	tz (wx.DateTime.TimeZone) – noDST (bool) –
Return type:	wx.DateTime

MakeUTC(self, noDST=False)¶

This is the same as calling MakeTimezone with the argument GMT0 .

Parameters:	noDST (bool) –
Return type:	wx.DateTime

static Now()¶

Returns the object corresponding to the current time.

Example:

now = wx.DateTime.Now()
print "Current time in Paris:\t%s\n"%(now.Format("%c", wx.DateTime.CET))

Return type:	wx.DateTime

Note

This function is accurate up to seconds. UNow can be used if better precision is required.

See also

Today

ParseDate(self, date)¶

This function is like ParseDateTime , but it only allows the date to be specified.

It is thus less flexible then ParseDateTime , but also has less chances to misinterpret the user input.

See ParseFormat for the description of function parameters and return value.

Parameters:	date (string) –
Return type:	int

See also

Format

ParseDateTime(self, datetime)¶

Parses the string datetime containing the date and time in free format.

This function tries as hard as it can to interpret the given string as date and time. Unlike ParseRfc822Date , it will accept anything that may be accepted and will only reject strings which cannot be parsed in any way at all. Notice that the function will fail if either date or time part is present but not both, use ParseDate or ParseTime to parse strings containing just the date or time component.

See ParseFormat for the description of function parameters and return value.

Parameters:	datetime (string) –
Return type:	int

ParseFormat(self, *args, **kw)¶

Overloaded Implementations:

ParseFormat (self, date, format, dateDef)

This function parses the string date according to the given format.

The system strptime(3) function is used whenever available, but even if it is not, this function is still implemented, although support for locale-dependent format specifiers such as "%c" , "%x" or "%X" may not be perfect and GNU extensions such as "%z" and "%Z" are not implemented. This function does handle the month and weekday names in the current locale on all platforms, however.

Please see the description of the ANSI C function strftime(3) for the syntax of the format string.

The dateDef parameter is used to fill in the fields which could not be determined from the format string. For example, if the format is "%d" (the day of the month), the month and the year are taken from dateDef. If it is not specified, Today is used as the default date.

Example of using this function:

dt = wx.DateTime() # Uninitialized datetime
bDate = "25/12/2012"

if dt.ParseFormat(bDate, "%d-%m-%Y") == -1:
    # This datetime format is wrong on purpose
    print "Wrong format"

elif dt.ParseFormat(bDate, "%d/%m/%Y") >= 0:
    # This is correct
    print "Format OK!", dt

Parameters:	date (string) – The string to be parsed. format (string) – strptime()-like format string. dateDef (wx.DateTime) – Used to fill in the date components not specified in the date string.
Return type:	int
Returns:	-1 if the parse failed, the number of characters parsed otherwise.

See also

Format

ParseFormat (self, date, format)

This version of the ParseFormat method works the same, but with missing values filled in from Today.

Parameters:	date (string) – format (string) –
Return type:	int

ParseFormat (self, date)

This version uses “%c” as the format code, which is the same default used by Format.

Parameters:	date (string) –
Return type:	int

ParseISOCombined(self, date, sep='T')¶

This function parses the string containing the date and time in ISO 8601 combined format "YYYY-MM-DDTHH:MM:SS" .

The separator between the date and time parts must be equal to sep for the function to succeed.

Parameters:	date (string) – sep (int) –
Return type:	bool
Returns:	`True` if the entire string was parsed successfully, `False` otherwise.

ParseISODate(self, date)¶

This function parses the date in ISO 8601 format "YYYY-MM-DD" .

Parameters:	date (string) –
Return type:	bool
Returns:	`True` if the entire string was parsed successfully, `False` otherwise.

ParseISOTime(self, date)¶

This function parses the time in ISO 8601 format "HH:MM:SS" .

Parameters:	date (string) –
Return type:	bool
Returns:	`True` if the entire string was parsed successfully, `False` otherwise.

ParseRfc822Date(self, date)¶

Parses the string date looking for a date formatted according to the RFC 822 in it.

The exact description of this format may, of course, be found in the RFC (section 5), but, briefly, this is the format used in the headers of Internet email messages and one of the most common strings expressing date in this format may be something like "Sat, 18 Dec 1999 00:48:30 +0100" .

Returns None if the conversion failed, otherwise return the pointer to the character immediately following the part of the string which could be parsed. If the entire string contains only the date in RFC 822 format, the returned pointer will be pointing to a NUL character.

This function is intentionally strict, it will return an error for any string which is not RFC 822 compliant. If you need to parse date formatted in more free ways, you should use ParseDateTime or ParseDate instead.

See ParseFormat for the description of function parameters and return value.

Parameters:	date (string) –
Return type:	int

ParseTime(self, time)¶

This functions is like ParseDateTime , but only allows the time to be specified in the input string.

See ParseFormat for the description of function parameters and return value.

Parameters:	time (string) –
Return type:	int

ResetTime(self)¶

Reset time to midnight (00:00:00) without changing the date.

Return type:	wx.DateTime

Set(self, day, month, year=Inv_Year, hour=0, minute=0, second=0, millisec=0)¶

Sets the date and time from the parameters.

If the function parameters are invalid, e.g. month is February and day is 30, the object is left in an invalid state, i.e. IsValid method will return False.

If the specified time moment is invalid due to DST, i.e. it falls into the “missing” hour on the date on which the DST starts, a valid wx.DateTime object is still constructed but its hour component is moved forward to ensure that it corresponds to a valid moment in the local time zone. For example, in the CET time zone the DST started on 2013-03-31T02:00:00 in 2013 and so setting the object to 2:30 at this date actually sets the hour to 3, and not 2.

Parameters:	day (int) – month (DateTime.Month) – year (int) – hour (int) – minute (int) – second (int) – millisec (int) –
Return type:	wx.DateTime

SetHMS(self, hour, minute=0, second=0, millisec=0)¶

Sets the date to be equal to Today and the time from supplied parameters.

See the full Set overload for the remarks about DST.

Parameters:	hour (int) – minute (int) – second (int) – millisec (int) –
Return type:	wx.DateTime

SetJDN(self, jdn)¶

Sets the date from the so-called Julian Day Number.

By definition, the Julian Day Number, usually abbreviated as JDN, of a particular instant is the fractional number of days since 12 hours Universal Coordinated Time (Greenwich mean noon) on January 1 of the year -4712 in the Julian proleptic calendar.

Parameters:	jdn (float) –
Return type:	wx.DateTime

SetTimeT(self, timet)¶

Constructs the object from timet value holding the number of seconds since Jan 1, 1970 UTC.

If timet is invalid, i.e.:

-1

wx.DateTime becomes invalid too, i.e. its IsValid will return False.

Parameters:	timet (int) –
Return type:	wx.DateTime

SetTm(self, tm)¶

Sets the date and time from the broken down representation in the ` wx.DateTime.Tm ` structure.

Parameters:	tm (wx.DateTime.Tm) –
Return type:	wx.DateTime

static SetCountry(country)¶

Sets the country to use by default.

This setting influences the DST calculations, date formatting and other things.

Parameters:	country (Country) –

See also

GetCountry

SetDay(self, day)¶

Sets the day without changing other date components.

Parameters:	day (int) –
Return type:	wx.DateTime

SetFromDOS(self, ddt)¶

Sets the date from the date and time in DOS format.

Parameters:	ddt (long) –
Return type:	wx.DateTime

SetHour(self, hour)¶

Sets the hour without changing other date components.

Parameters:	hour (int) –
Return type:	wx.DateTime

SetMillisecond(self, millisecond)¶

Sets the millisecond without changing other date components.

Parameters:	millisecond (int) –
Return type:	wx.DateTime

SetMinute(self, minute)¶

Sets the minute without changing other date components.

Parameters:	minute (int) –
Return type:	wx.DateTime

SetMonth(self, month)¶

Sets the month without changing other date components.

Parameters:	month (DateTime.Month) –
Return type:	wx.DateTime

SetSecond(self, second)¶

Sets the second without changing other date components.

Parameters:	second (int) –
Return type:	wx.DateTime

SetToCurrent(self)¶

Sets the date and time of to the current values.

Same as assigning the result of wx.Now to this object.

Return type:	wx.DateTime

SetToLastMonthDay(self, month=Inv_Month, year=Inv_Year)¶

Sets the date to the last day in the specified month (the current one by default).

Parameters:	month (DateTime.Month) – year (int) –
Return type:	wx.DateTime
Returns:	The reference to the modified object itself.

SetToLastWeekDay(self, weekday, month=Inv_Month, year=Inv_Year)¶

The effect of calling this function is the same as of calling SetToWeekDay (-1, weekday, month, year).

The date will be set to the last weekday in the given month and year (the current ones by default). Always returns True.

Parameters:	weekday (DateTime.WeekDay) – month (DateTime.Month) – year (int) –
Return type:	bool

SetToNextWeekDay(self, weekday)¶

Sets the date so that it will be the first weekday following the current date.

Parameters:	weekday (DateTime.WeekDay) –
Return type:	wx.DateTime
Returns:	The reference to the modified object itself.

SetToPrevWeekDay(self, weekday)¶

Sets the date so that it will be the last weekday before the current date.

Parameters:	weekday (DateTime.WeekDay) –
Return type:	wx.DateTime
Returns:	The reference to the modified object itself.

SetToWeekDay(self, weekday, n=1, month=Inv_Month, year=Inv_Year)¶

Sets the date to the n-th weekday in the given month of the given year (the current month and year are used by default).

The parameter n may be either positive (counting from the beginning of the month) or negative (counting from the end of it).

For example, SetToWeekDay(2, DateTime.Wed) will set the date to the second Wednesday in the current month and SetToWeekDay(-1, wx.DateTime.Sun ) will set the date to the last Sunday in the current month.

Parameters:	weekday (DateTime.WeekDay) – n (int) – month (DateTime.Month) – year (int) –
Return type:	bool
Returns:	`True` if the date was modified successfully, `False` otherwise meaning that the specified date doesn’t exist.

SetToWeekDayInSameWeek(self, weekday, flags=Monday_First)¶

Adjusts the date so that it will still lie in the same week as before, but its week day will be the given one.

Parameters:	weekday (DateTime.WeekDay) – flags (WeekFlags) –
Return type:	wx.DateTime
Returns:	The reference to the modified object itself.

static SetToWeekOfYear(year, numWeek, weekday=Mon)¶

Set the date to the given weekday in the week number numWeek of the given year .

The number should be in range 1-53.

Note that the returned date may be in a different year than the one passed to this function because both the week 1 and week 52 or 53 (for leap years) contain days from different years. See GetWeekOfYear for the explanation of how the year weeks are counted.

Parameters:	year (int) – numWeek (int) – weekday (DateTime.WeekDay) –
Return type:	wx.DateTime

SetToYearDay(self, yday)¶

Sets the date to the day number yday in the same year (i.e. unlike the other functions, this one does not use the current year).

The day number should be in the range 1-366 for the leap years and 1-365 for the other ones.

Parameters:	yday (int) –
Return type:	wx.DateTime
Returns:	The reference to the modified object itself.

SetYear(self, year)¶

Sets the year without changing other date components.

Parameters:	year (int) –
Return type:	wx.DateTime

Subtract(self, *args, **kw)¶

Overloaded Implementations:

Subtract (self, diff)

Subtracts the given time span from this object.

Parameters:	diff (wx.TimeSpan) –
Return type:	wx.DateTime

Subtract (self, diff)

Subtracts the given date span from this object.

Parameters:	diff (wx.DateSpan) –
Return type:	wx.DateTime

Subtract (self, dt)

Subtracts another date from this one and returns the difference between them as a wx.TimeSpan.

Parameters:	dt (wx.DateTime) –
Return type:	wx.TimeSpan

ToTimezone(self, tz, noDST=False)¶

Transform the date to the given time zone.

If noDST is True, no DST adjustments will be made.

Notice that, as with FromTimezone , using wx.DateTime.Local as tz doesn’t really make sense and may return a different object when DST is in effect and noDST is False.

Parameters:	tz (wx.DateTime.TimeZone) – noDST (bool) –
Return type:	wx.DateTime
Returns:	The date adjusted by the different between the local and the given time zones.