"Mon, 20 May 2024 08:54:09"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240520
Only TIME
08:54:09
General datetime
2024-05-20 08:54:09Z
For Database
2024-05-20 08:54:09
For HTTP1.1
Mon, 20 May 2024 08:54:09 GMT