JCL Help:ISOWeekToDateTime
JCL Help: ISOWeekToDateTime Function
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Summary
Returns the date denoted by year, week and weekday.
Pascal
function ISOWeekToDateTime(const Year: Integer; const Week: Integer; const Day: Integer): TDateTime;
Parameters
| Parameters | Description |
| const Year: Integer | base-year of the ISO-week. |
| const Week: Integer | ISO week of the year. |
| const Day: Integer | Day in the week (1=Monday, ... 7=Sunday). |
Return Value
The function returns the TDateTime value of the specified day
Description
ISOWeekToDateTime returns the date denoted by year, week and weekday. according to the ISO 8601 specification.
See Also
About
Unit
Donator
Anonymous
Notes
The specified date is assumed to be after 1/1/0001 and before 1/1/10000). According to ISO 8601 the reference year for the week can be the same as in DateTime, the previous or the next year. The constants ISOFirstWeekDay=2 and ISOFirstWeekMinDays=4 are defined for ISO compatibility, Other values might be useful in some instances and can be set in the source code.
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