"Mon, 15 Jul 2024 13:40:38"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240715
Only TIME
13:40:38
General datetime
2024-07-15 13:40:38Z
For Database
2024-07-15 13:40:38
For HTTP1.1
Mon, 15 Jul 2024 13:40:38 GMT