"Sat, 21 Sep 2024 22:19:42"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
22:19:42
General datetime
2024-09-21 22:19:42Z
For Database
2024-09-21 22:19:42
For HTTP1.1
Sat, 21 Sep 2024 22:19:42 GMT