"Sun, 18 Aug 2024 12:39:16"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
12:39:16
General datetime
2024-08-18 12:39:16Z
For Database
2024-08-18 12:39:16
For HTTP1.1
Sun, 18 Aug 2024 12:39:16 GMT