"Mon, 23 Sep 2024 21:40:54"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240923
Only TIME
21:40:54
General datetime
2024-09-23 21:40:54Z
For Database
2024-09-23 21:40:54
For HTTP1.1
Mon, 23 Sep 2024 21:40:54 GMT