How does night and day time cycle work?

[sb-89]

    time: AppTime {
      dayLengthMinutes: 60,
      timeScale: 1,
      sunrise: 7.616154670715332,
      sunset: 19.95526885986328,
      time: 14.656824111938477
    }

I pulled this AppTime object from Rustoria EU Long.
I'm trying to determine real life time to day/night
The timing appears to show a 12 hour day/night cycle, which would mean 30 minutes day/night, but it's actually 45/15

I can only assume that time ticks quicker once it is night time?