"Mon, 08 Apr 2024 11:20:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240408
Only TIME
11:20:21
General datetime
2024-04-08 11:20:21Z
For Database
2024-04-08 11:20:21
For HTTP1.1
Mon, 08 Apr 2024 11:20:21 GMT