Game-day
A day lasts 25000 Game-ticks or 416.66~ Game-seconds.
The light varies throughout the day in a cycle consisting of 4 phases:
| Phase | Behaviour | Time of day at start | Time of day at end | Duration (in ticks) | Duration (in seconds) |
|---|---|---|---|---|---|
| day | fully light | 0.75 | 0.25 | 12500 | 208.33~ |
| dusk | darkening | 0.25 | 0.42 | 5000 | 83.33~ |
| night | fully dark | 0.42 | 0.58 | 2500 | 41.66~ |
| dawn | lightening | 0.58 | 0.75 | 5000 | 83.33~ |
------------- day -------><---- dusk ----><---- night ----><---- dawn ----><-------- day ------------ % 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 |----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|----|
During dusk, the light level decreases linearly from fully light to fully dark. During dawn, it increases linearly from dark to light.
Note: The actual time between phases can vary +/- a tick due to rounding errors.
These values are accurate as of version 0.11.8.
Longer or shorter days?
It is possible - and there are some mods, that do it - to modify the length of a game-day. So a game day is not a fixed length, it depends on the loaded mod. The above describes only the vanilla game.