"Sun, 21 Jul 2024 20:39:48"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240721
Only TIME
20:39:48
General datetime
2024-07-21 20:39:48Z
For Database
2024-07-21 20:39:48
For HTTP1.1
Sun, 21 Jul 2024 20:39:48 GMT