"Mon, 15 Jul 2024 16:20:16"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240715
Only TIME
16:20:16
General datetime
2024-07-15 16:20:16Z
For Database
2024-07-15 16:20:16
For HTTP1.1
Mon, 15 Jul 2024 16:20:16 GMT