"Sat, 16 Mar 2024 20:16:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240316
Only TIME
20:16:12
General datetime
2024-03-16 20:16:12Z
For Database
2024-03-16 20:16:12
For HTTP1.1
Sat, 16 Mar 2024 20:16:12 GMT