"Sun, 18 Aug 2024 22:48:44"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
22:48:44
General datetime
2024-08-18 22:48:44Z
For Database
2024-08-18 22:48:44
For HTTP1.1
Sun, 18 Aug 2024 22:48:44 GMT