"Sat, 21 Sep 2024 13:32:31"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
13:32:31
General datetime
2024-09-21 13:32:31Z
For Database
2024-09-21 13:32:31
For HTTP1.1
Sat, 21 Sep 2024 13:32:31 GMT