"Sat, 21 Sep 2024 08:57:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
08:57:12
General datetime
2024-09-21 08:57:12Z
For Database
2024-09-21 08:57:12
For HTTP1.1
Sat, 21 Sep 2024 08:57:12 GMT