"Sun, 18 Aug 2024 14:23:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
14:23:18
General datetime
2024-08-18 14:23:18Z
For Database
2024-08-18 14:23:18
For HTTP1.1
Sun, 18 Aug 2024 14:23:18 GMT