The RecodeMonth function replaces the month for the specified TDateTime value.

The function converts the date/time value specified by AValue, with the value obtained by changing the month within AValue to the month specified with AMonth.

Valid accepted values for AMonth range from 1 to 12.

If the value provided for AMonth does not represent a valid month and is not within the allowable range, or if the change results in an invalid day of the month such as changing Jan 31 to Feb 31, then RecodeMonth raises an exception.

Declaration: Function RecodeMonth(const AValue: TDateTime; const AMonth: Word): TDateTime;

An example would be as follows.

procedure OnMapEvent(var Value:Variant);
begin
//If Date is 2024-06-25 then the result is 2024-07-25
Value := RecodeMonth(Date, 7);
end;