"Wed, 18 Sep 2024 13:40:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240918
Only TIME
13:40:20
General datetime
2024-09-18 13:40:20Z
For Database
2024-09-18 13:40:20
For HTTP1.1
Wed, 18 Sep 2024 13:40:20 GMT