"Mon, 08 Apr 2024 20:00:00"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240408
Only TIME
20:00:00
General datetime
2024-04-08 20:00:00Z
For Database
2024-04-08 20:00:00
For HTTP1.1
Mon, 08 Apr 2024 20:00:00 GMT