"Mon, 21 Oct 2024 21:45:36"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241021
Only TIME
21:45:36
General datetime
2024-10-21 21:45:36Z
For Database
2024-10-21 21:45:36
For HTTP1.1
Mon, 21 Oct 2024 21:45:36 GMT