"Mon, 15 Apr 2024 11:21:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240415
Only TIME
11:21:03
General datetime
2024-04-15 11:21:03Z
For Database
2024-04-15 11:21:03
For HTTP1.1
Mon, 15 Apr 2024 11:21:03 GMT