"Mon, 27 May 2024 09:56:57"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240527
Only TIME
09:56:57
General datetime
2024-05-27 09:56:57Z
For Database
2024-05-27 09:56:57
For HTTP1.1
Mon, 27 May 2024 09:56:57 GMT