"Mon, 27 May 2024 15:45:07"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240527
Only TIME
15:45:07
General datetime
2024-05-27 15:45:07Z
For Database
2024-05-27 15:45:07
For HTTP1.1
Mon, 27 May 2024 15:45:07 GMT