Calendar

A calendar is a system for organizing and measuring time. It is used to divide time into units such as days, weeks, months, and years. Calendars are used to record and plan events, appointments, and holidays.

Types of Calendars

There are different types of calendars used around the world. The most common types include:

• Solar Calendar: Based on the position of the sun, such as the Gregorian calendar.
• Lunar Calendar: Based on the phases of the moon, such as the Islamic calendar.
• Lunisolar Calendar: Combines the movements of the sun and the moon, such as the Hebrew calendar.

Days of the Week

Most calendars divide the week into seven days:

• Sunday
• Monday
• Tuesday
• Wednesday
• Thursday
• Friday
• Saturday

Months of the Year

Calendars also organize time into months. The Gregorian calendar, for example, has 12 months:

1. January
2. February
3. March
4. April
5. May
6. June
7. July
8. August
9. September
10. October
11. November
12. December

These months have varying numbers of days, with February being the shortest month and having 28 or 29 days in leap years.

[Calendar] Related Worksheets and Study Guides:

• Time and CalendarESL-Spanish • Grades 3-5