"Mon, 27 May 2024 14:12:04"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240527
Only TIME
14:12:04
General datetime
2024-05-27 14:12:04Z
For Database
2024-05-27 14:12:04
For HTTP1.1
Mon, 27 May 2024 14:12:04 GMT