"Sun, 18 Aug 2024 15:11:02"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
15:11:02
General datetime
2024-08-18 15:11:02Z
For Database
2024-08-18 15:11:02
For HTTP1.1
Sun, 18 Aug 2024 15:11:02 GMT