"Mon, 15 Apr 2024 20:01:14"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240415
Only TIME
20:01:14
General datetime
2024-04-15 20:01:14Z
For Database
2024-04-15 20:01:14
For HTTP1.1
Mon, 15 Apr 2024 20:01:14 GMT