"Sat, 16 Mar 2024 20:16:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240316
Only TIME
20:16:13
General datetime
2024-03-16 20:16:13Z
For Database
2024-03-16 20:16:13
For HTTP1.1
Sat, 16 Mar 2024 20:16:13 GMT