"Sun, 18 Aug 2024 17:45:43"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
17:45:43
General datetime
2024-08-18 17:45:43Z
For Database
2024-08-18 17:45:43
For HTTP1.1
Sun, 18 Aug 2024 17:45:43 GMT