"Mon, 13 May 2024 11:21:06"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240513
Only TIME
11:21:06
General datetime
2024-05-13 11:21:06Z
For Database
2024-05-13 11:21:06
For HTTP1.1
Mon, 13 May 2024 11:21:06 GMT