"Mon, 13 May 2024 11:21:07"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240513
Only TIME
11:21:07
General datetime
2024-05-13 11:21:07Z
For Database
2024-05-13 11:21:07
For HTTP1.1
Mon, 13 May 2024 11:21:07 GMT