"Mon, 15 Jul 2024 21:49:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240715
Only TIME
21:49:35
General datetime
2024-07-15 21:49:35Z
For Database
2024-07-15 21:49:35
For HTTP1.1
Mon, 15 Jul 2024 21:49:35 GMT