"Mon, 16 Sep 2024 21:20:39"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240916
Only TIME
21:20:39
General datetime
2024-09-16 21:20:39Z
For Database
2024-09-16 21:20:39
For HTTP1.1
Mon, 16 Sep 2024 21:20:39 GMT