"Fri, 16 Feb 2024 20:15:39"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240216
Only TIME
20:15:39
General datetime
2024-02-16 20:15:39Z
For Database
2024-02-16 20:15:39
For HTTP1.1
Fri, 16 Feb 2024 20:15:39 GMT