Calendar is a very useful tool for us to organize our time and plan ahead. It helps us to quickly view the dates of the current month, as well as the upcoming months. It also allows us to easily check holidays and special occasions that are coming up. With a calendar, we can also set reminders, jot down important notes or tasks that need to be done, and even plan out our daily activities. Having a calendar is essential for managing our time efficiently and staying on top of things!