"Sun, 18 Aug 2024 23:11:33"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
23:11:33
General datetime
2024-08-18 23:11:33Z
For Database
2024-08-18 23:11:33
For HTTP1.1
Sun, 18 Aug 2024 23:11:33 GMT