"Sun, 18 Aug 2024 06:39:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
06:39:35
General datetime
2024-08-18 06:39:35Z
For Database
2024-08-18 06:39:35
For HTTP1.1
Sun, 18 Aug 2024 06:39:35 GMT