"Sun, 21 Jul 2024 17:40:24"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240721
Only TIME
17:40:24
General datetime
2024-07-21 17:40:24Z
For Database
2024-07-21 17:40:24
For HTTP1.1
Sun, 21 Jul 2024 17:40:24 GMT