The TDateTime data type is used to store date-and-time information. Actually, it is a floating-point data type that is interpreted in a special way.
The integer part of the TDateTime value is called “date portion”, it denotes the number of days that have passed since 12/30/1899. The fractional part of the value is called “time portion”, it denotes a part of a 24 hour day that has elapsed.
Below are several examples of TDateTime values and their descriptions:
| Value | Description |
|---|---|
| 0.0 | 12/30/1899 12:00 AM |
| -45103.0 | 7/4/1776 12:00 AM |
| 38902.0 | 7/4/2006 12:00 AM |
| 36526.125 | 1/1/2000 3:00 AM |
| 36519.5 | 12/25/1999 12:00 PM |
| 38214.770833333333333 | 8/15/2004 6:30 PM |
| -148732.875 | 10/12/1492 9:00 PM |
There are no TDateTime value between 0 and -1.
See Also
Working With Dates
Working With Time
aqDateTime Object
TcxDateEdit Object
TcxTimeEdit Object
TcxDateEdit.Date
TcxTimeEdit.Time