"Tue, 13 Feb 2024 20:15:31"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240213
Only TIME
20:15:31
General datetime
2024-02-13 20:15:31Z
For Database
2024-02-13 20:15:31
For HTTP1.1
Tue, 13 Feb 2024 20:15:31 GMT