"Mon, 27 May 2024 14:38:08"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240527
Only TIME
14:38:08
General datetime
2024-05-27 14:38:08Z
For Database
2024-05-27 14:38:08
For HTTP1.1
Mon, 27 May 2024 14:38:08 GMT