"Sat, 21 Sep 2024 02:18:14"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
02:18:14
General datetime
2024-09-21 02:18:14Z
For Database
2024-09-21 02:18:14
For HTTP1.1
Sat, 21 Sep 2024 02:18:14 GMT