"Mon, 15 Jul 2024 20:56:57"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240715
Only TIME
20:56:57
General datetime
2024-07-15 20:56:57Z
For Database
2024-07-15 20:56:57
For HTTP1.1
Mon, 15 Jul 2024 20:56:57 GMT