"Sat, 20 Jul 2024 13:31:31"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240720
Only TIME
13:31:31
General datetime
2024-07-20 13:31:31Z
For Database
2024-07-20 13:31:31
For HTTP1.1
Sat, 20 Jul 2024 13:31:31 GMT