"Mon, 13 May 2024 09:08:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240513
Only TIME
09:08:11
General datetime
2024-05-13 09:08:11Z
For Database
2024-05-13 09:08:11
For HTTP1.1
Mon, 13 May 2024 09:08:11 GMT