"Sun, 21 Jul 2024 22:39:57"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240721
Only TIME
22:39:57
General datetime
2024-07-21 22:39:57Z
For Database
2024-07-21 22:39:57
For HTTP1.1
Sun, 21 Jul 2024 22:39:57 GMT