Season Sensor - Glitchfiend/SereneSeasons GitHub Wiki

Season Sensors are devices that can be used to get a redstone signal depending on what season it currently is. You can right click the season sensor to change what season it's detecting, and whenever that season is active, it will give off a redstone signal in all 4 directions.

The strength of the signal correlates to how far it is into the season. At the start of a season, it will have a strength of 1, and increase up to a strength of 15 by the end.