"Mon, 13 May 2024 12:35:14"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240513
Only TIME
12:35:14
General datetime
2024-05-13 12:35:14Z
For Database
2024-05-13 12:35:14
For HTTP1.1
Mon, 13 May 2024 12:35:14 GMT