"Mon, 27 May 2024 14:13:02"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240527
Only TIME
14:13:02
General datetime
2024-05-27 14:13:02Z
For Database
2024-05-27 14:13:02
For HTTP1.1
Mon, 27 May 2024 14:13:02 GMT