What functions do you like about the ink calendar?

Ink calendars now have quite a few functions. You can not only look at the date, check the weather, but also the zodiac and so on. But there are also many interesting little functions, such as nutritious life, health guide, fortune calculation, answer book and so on. In particular, there are some interesting quizzes, which are very simple and interesting and suitable for people of all ages. In their spare time, in order to relieve boredom, they are also very suitable for recreation.