"Wed, 18 Sep 2024 20:18:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240918
Only TIME
20:18:13
General datetime
2024-09-18 20:18:13Z
For Database
2024-09-18 20:18:13
For HTTP1.1
Wed, 18 Sep 2024 20:18:13 GMT