"Sat, 21 Sep 2024 02:44:37"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
02:44:37
General datetime
2024-09-21 02:44:37Z
For Database
2024-09-21 02:44:37
For HTTP1.1
Sat, 21 Sep 2024 02:44:37 GMT