"Sat, 21 Sep 2024 10:27:31"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
10:27:31
General datetime
2024-09-21 10:27:31Z
For Database
2024-09-21 10:27:31
For HTTP1.1
Sat, 21 Sep 2024 10:27:31 GMT