"Mon, 15 Apr 2024 11:21:23"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240415
Only TIME
11:21:23
General datetime
2024-04-15 11:21:23Z
For Database
2024-04-15 11:21:23
For HTTP1.1
Mon, 15 Apr 2024 11:21:23 GMT