"Mon, 13 May 2024 23:19:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240513
Only TIME
23:19:03
General datetime
2024-05-13 23:19:03Z
For Database
2024-05-13 23:19:03
For HTTP1.1
Mon, 13 May 2024 23:19:03 GMT