"Mon, 15 Apr 2024 16:08:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240415
Only TIME
16:08:13
General datetime
2024-04-15 16:08:13Z
For Database
2024-04-15 16:08:13
For HTTP1.1
Mon, 15 Apr 2024 16:08:13 GMT