"Mon, 13 May 2024 09:40:32"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240513
Only TIME
09:40:32
General datetime
2024-05-13 09:40:32Z
For Database
2024-05-13 09:40:32
For HTTP1.1
Mon, 13 May 2024 09:40:32 GMT