"Sun, 21 Apr 2024 22:17:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240421
Only TIME
22:17:35
General datetime
2024-04-21 22:17:35Z
For Database
2024-04-21 22:17:35
For HTTP1.1
Sun, 21 Apr 2024 22:17:35 GMT