"Mon, 27 May 2024 14:37:40"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240527
Only TIME
14:37:40
General datetime
2024-05-27 14:37:40Z
For Database
2024-05-27 14:37:40
For HTTP1.1
Mon, 27 May 2024 14:37:40 GMT