"Mon, 06 May 2024 18:21:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240506
Only TIME
18:21:35
General datetime
2024-05-06 18:21:35Z
For Database
2024-05-06 18:21:35
For HTTP1.1
Mon, 06 May 2024 18:21:35 GMT