"Wed, 21 Aug 2024 21:31:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240821
Only TIME
21:31:13
General datetime
2024-08-21 21:31:13Z
For Database
2024-08-21 21:31:13
For HTTP1.1
Wed, 21 Aug 2024 21:31:13 GMT