"Sat, 21 Sep 2024 05:31:02"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
05:31:02
General datetime
2024-09-21 05:31:02Z
For Database
2024-09-21 05:31:02
For HTTP1.1
Sat, 21 Sep 2024 05:31:02 GMT