"Sun, 21 Jul 2024 08:11:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240721
Only TIME
08:11:56
General datetime
2024-07-21 08:11:56Z
For Database
2024-07-21 08:11:56
For HTTP1.1
Sun, 21 Jul 2024 08:11:56 GMT