There are many different types of calendars in the world. The most common are the Gregorian calendar, which is used in the United States, and the Chinese calendar. Other calendars include the Hindu calendar, the Islamic calendar, and the Hebrew calendar.

The Gregorian calendar is a solar calendar with 12 months of 30 or 31 days. The Chinese calendar is a lunar calendar with 12 months of 29 or 30 days. The Hindu calendar is a lunisolar calendar with 12 months of 28 or 29 days. The Islamic calendar is a lunar calendar with 12 months of 29 or 30 days. The Jewish calendar is a lunisolar calendar with 12 months of 28 or 29 days.

Calendars for the year include the Gregorian, Chinese, Hindu, Islamic and Hebrew calendars. For each of these calendars, there are monthly calendars.

When choosing a calendar august with holidays, it is important to consider what type of calendar you need. If you need a solar calendar, then the Gregorian calendar is a good choice. If you need a lunar calendar, most people choose the Chinese calendar. If you need a lunisolar calendar, then the Hindu calendar, Islamic calendar, and Hebrew calendar are all good options.