"Mon, 15 Apr 2024 22:21:01"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240415
Only TIME
22:21:01
General datetime
2024-04-15 22:21:01Z
For Database
2024-04-15 22:21:01
For HTTP1.1
Mon, 15 Apr 2024 22:21:01 GMT