"Sun, 18 Aug 2024 08:26:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
08:26:20
General datetime
2024-08-18 08:26:20Z
For Database
2024-08-18 08:26:20
For HTTP1.1
Sun, 18 Aug 2024 08:26:20 GMT