"Mon, 15 Jul 2024 12:21:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240715
Only TIME
12:21:13
General datetime
2024-07-15 12:21:13Z
For Database
2024-07-15 12:21:13
For HTTP1.1
Mon, 15 Jul 2024 12:21:13 GMT