"Mon, 27 May 2024 13:31:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240527
Only TIME
13:31:56
General datetime
2024-05-27 13:31:56Z
For Database
2024-05-27 13:31:56
For HTTP1.1
Mon, 27 May 2024 13:31:56 GMT