"Sun, 18 Aug 2024 13:14:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
13:14:12
General datetime
2024-08-18 13:14:12Z
For Database
2024-08-18 13:14:12
For HTTP1.1
Sun, 18 Aug 2024 13:14:12 GMT