Japan’s ancient calendar, which is divided into 24 seasons and 72 microseasons, is now available as a free app called 72 Seasons. It syncs with the old 72-season calendar and updates about every five days, pinging you (if you allow it) with every new microseason as you enter it.

And not only does it give you the microseason but a whole bunch of poetic information like the seasonal word, seasonal fish, seasonal vegetable, seasonal star and even seasonal activity. Check it out below!