"Sun, 18 Aug 2024 20:23:34"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
20:23:34
General datetime
2024-08-18 20:23:34Z
For Database
2024-08-18 20:23:34
For HTTP1.1
Sun, 18 Aug 2024 20:23:34 GMT