"Mon, 27 May 2024 21:03:55"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240527
Only TIME
21:03:55
General datetime
2024-05-27 21:03:55Z
For Database
2024-05-27 21:03:55
For HTTP1.1
Mon, 27 May 2024 21:03:55 GMT