"Tue, 21 May 2024 19:17:31"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240521
Only TIME
19:17:31
General datetime
2024-05-21 19:17:31Z
For Database
2024-05-21 19:17:31
For HTTP1.1
Tue, 21 May 2024 19:17:31 GMT