"Mon, 13 May 2024 08:36:38"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240513
Only TIME
08:36:38
General datetime
2024-05-13 08:36:38Z
For Database
2024-05-13 08:36:38
For HTTP1.1
Mon, 13 May 2024 08:36:38 GMT