"Sun, 12 May 2024 08:54:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240512
Only TIME
08:54:03
General datetime
2024-05-12 08:54:03Z
For Database
2024-05-12 08:54:03
For HTTP1.1
Sun, 12 May 2024 08:54:03 GMT