| StartOfISOWeekNo Routines |
Unit
QESBPCSDateTime
| Overloaded Variants |
| Function StartOfISOWeekNo(const WeekNo: Integer; const Year: Word): TDateTime; |
| Function StartOfISOWeekNo(const WeekNo, Year: Integer): TDateTime; |
Declaration
Function StartOfISOWeekNo(const WeekNo: Integer; const Year: Word): TDateTime;
Description
Note that the Start of the Week is Monday in ISO-8601.
| Parameters |
| WeekNo | Returns the ISO-8601 Week Number in specified Year |
| Year | Returns 4 digit year to which the Week Number applies. |
Category
Date/Time Arithmetic Routines
Week Based Arithmetic RoutinesImplementation
function StartOfISOWeekNo (const WeekNo: Integer; const Year: Word): TDateTime;
var
FirstMonday: TDateTime;
begin
FirstMonday := GetFirstMondayOfYear (Year);
if Date2Day (FirstMonday) < 5 then
Result := AddWeeks (FirstMonday, WeekNo - 1)
else
Result := AddWeeks (FirstMonday, WeekNo - 2)
End; |
Declaration
Function StartOfISOWeekNo(const WeekNo, Year: Integer): TDateTime;Implementation
function StartOfISOWeekNo (const WeekNo, Year: Integer): TDateTime;
var
FirstMonday: TDateTime;
begin
FirstMonday := GetFirstMondayOfYear (Year);
if Date2Day (FirstMonday) < 5 then
Result := AddWeeks (FirstMonday, WeekNo - 1)
else
Result := AddWeeks (FirstMonday, WeekNo - 2)
End; |
|
|