"Mon, 15 Jul 2024 14:03:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240715
Only TIME
14:03:18
General datetime
2024-07-15 14:03:18Z
For Database
2024-07-15 14:03:18
For HTTP1.1
Mon, 15 Jul 2024 14:03:18 GMT