"Mon, 20 May 2024 08:36:37"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240520
Only TIME
08:36:37
General datetime
2024-05-20 08:36:37Z
For Database
2024-05-20 08:36:37
For HTTP1.1
Mon, 20 May 2024 08:36:37 GMT