"Mon, 15 Jul 2024 19:39:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240715
Only TIME
19:39:12
General datetime
2024-07-15 19:39:12Z
For Database
2024-07-15 19:39:12
For HTTP1.1
Mon, 15 Jul 2024 19:39:12 GMT