"Mon, 20 May 2024 08:36:17"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240520
Only TIME
08:36:17
General datetime
2024-05-20 08:36:17Z
For Database
2024-05-20 08:36:17
For HTTP1.1
Mon, 20 May 2024 08:36:17 GMT