"Mon, 15 Apr 2024 16:23:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240415
Only TIME
16:23:11
General datetime
2024-04-15 16:23:11Z
For Database
2024-04-15 16:23:11
For HTTP1.1
Mon, 15 Apr 2024 16:23:11 GMT