"Sun, 18 Aug 2024 14:34:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
14:34:12
General datetime
2024-08-18 14:34:12Z
For Database
2024-08-18 14:34:12
For HTTP1.1
Sun, 18 Aug 2024 14:34:12 GMT