"Wed, 18 Sep 2024 23:18:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240918
Only TIME
23:18:18
General datetime
2024-09-18 23:18:18Z
For Database
2024-09-18 23:18:18
For HTTP1.1
Wed, 18 Sep 2024 23:18:18 GMT