| Description |
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The ReplaceDate function updates the date part of a TDateTime variable DateTimeVar with the date part of another TDateTime value NewDateValue without affecting the time.
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| Related commands |
| DecodeDate |
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Extracts the year, month, day values from a TDateTime var. |
| DecodeDateTime |
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Breaks a TDateTime variable into its date/time parts |
| DecodeTime |
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Break a TDateTime value into individual time values |
| EncodeDate |
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Build a TDateTime value from year, month and day values |
| EncodeDateTime |
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Build a TDateTime value from day and time values |
| EncodeTime |
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Build a TDateTime value from hour, min, sec and msec values |
| RecodeDate |
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Change only the date part of a TDateTime variable |
| RecodeTime |
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Change only the time part of a TDateTime variable |
| ReplaceTime |
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Change only the time part of a TDateTime variable |
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| Example code : Change the date without changing the time |
var
myDateTime, newDate : TDateTime;
begin
// Set the date to 29/10/2002 at 12:34:56
myDateTime := EncodeDateTime(2002, 10, 29, 12, 34, 56, 0);
WriteLn('The starting date/time = '+DateTimeToStr(myDateTime));
// Now change the date portion without touching the time
newDate := EncodeDate(1957, 02, 18);
ReplaceDate(myDateTime, newDate);
WriteLn('The new date/time = '+DateTimeToStr(myDateTime));
end;
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| Show full unit code |
The starting date/time = 29/10/2002 12:34:56
The new date/time = 18/02/1957 12:34:56
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