"Sun, 18 Aug 2024 21:05:31"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
21:05:31
General datetime
2024-08-18 21:05:31Z
For Database
2024-08-18 21:05:31
For HTTP1.1
Sun, 18 Aug 2024 21:05:31 GMT