"Sun, 18 Aug 2024 14:13:40"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
14:13:40
General datetime
2024-08-18 14:13:40Z
For Database
2024-08-18 14:13:40
For HTTP1.1
Sun, 18 Aug 2024 14:13:40 GMT