"Fri, 17 May 2024 18:21:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240517
Only TIME
18:21:56
General datetime
2024-05-17 18:21:56Z
For Database
2024-05-17 18:21:56
For HTTP1.1
Fri, 17 May 2024 18:21:56 GMT