"Sat, 21 Sep 2024 17:56:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
17:56:15
General datetime
2024-09-21 17:56:15Z
For Database
2024-09-21 17:56:15
For HTTP1.1
Sat, 21 Sep 2024 17:56:15 GMT