"Mon, 20 May 2024 09:07:54"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240520
Only TIME
09:07:54
General datetime
2024-05-20 09:07:54Z
For Database
2024-05-20 09:07:54
For HTTP1.1
Mon, 20 May 2024 09:07:54 GMT