"Mon, 20 May 2024 18:05:50"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240520
Only TIME
18:05:50
General datetime
2024-05-20 18:05:50Z
For Database
2024-05-20 18:05:50
For HTTP1.1
Mon, 20 May 2024 18:05:50 GMT