"Wed, 21 Aug 2024 21:36:42"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240821
Only TIME
21:36:42
General datetime
2024-08-21 21:36:42Z
For Database
2024-08-21 21:36:42
For HTTP1.1
Wed, 21 Aug 2024 21:36:42 GMT