"Mon, 21 Oct 2024 13:38:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241021
Only TIME
13:38:03
General datetime
2024-10-21 13:38:03Z
For Database
2024-10-21 13:38:03
For HTTP1.1
Mon, 21 Oct 2024 13:38:03 GMT