"Mon, 27 May 2024 18:04:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240527
Only TIME
18:04:18
General datetime
2024-05-27 18:04:18Z
For Database
2024-05-27 18:04:18
For HTTP1.1
Mon, 27 May 2024 18:04:18 GMT