Function DaylightSavingStartDate(Year, Timezone)

DaylightSavingStartDate

The function DaylightSavingStartDate computes the start date of daylight saving time for a particular year in a particular time zone.

DaylightSavingStartDate(
     Year,                    ! (input) an element expression
     Timezone                 ! (input) an element expression
     )

Arguments

Year

An element of a yearly calendar for the end date of daylight saving time must be computed.

Timezone

An element in the predefined set AllTimeZones.

Return Value

The result of DaylightSavingStartDate is the start date of daylight saving time, as a reference date, for the time zone Timezone in the year Year.

Example

Given the declarations:

Calendar cal_years {
    Index: i_year;
    Unit: year;
    BeginDate: "2024";
    EndDate: "2024";
    TimeslotFormat: "%c%y";
}
ElementParameter ep_year {
    Range: cal_years;
}

Then the code

ep_year := first( cal_years );
_sp_startDaylightSaving2024 := DaylightSavingStartDate( ep_year,
    'Central European Standard Time' );
display _sp_startDaylightSaving2024 ;

results in:

_sp_startDaylightSaving2024 := "2024-03-31 02" ;

See also