"Mon, 23 Sep 2024 07:21:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240923
Only TIME
07:21:15
General datetime
2024-09-23 07:21:15Z
For Database
2024-09-23 07:21:15
For HTTP1.1
Mon, 23 Sep 2024 07:21:15 GMT