"Sun, 21 Jul 2024 22:40:23"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240721
Only TIME
22:40:23
General datetime
2024-07-21 22:40:23Z
For Database
2024-07-21 22:40:23
For HTTP1.1
Sun, 21 Jul 2024 22:40:23 GMT