How Many Days Are In a School Year?

How many days are in the school year? In the U.S, the school year often lasts 160-180 days, depending on specific states.
Updated: May 15, 2025
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An academic year typically lasts 160–180 days in the U.S., excluding weekends and holidays. To find out "how many days in a school year" or to calculate a specific date, use the Days from Today calculator.

How Many Days Are In School Year In The U.S.

There are normally mid-term or other breaks during the school year, along with festive holidays like Christmas and New Year in December and January, spring break in March or April, and a long summer break from late May or June to August or September. Typically, a school year in the U.S. lasts around 160–180 days. To find "how many days in a school year" or for precise planning, use a days calculator.

For those states where the winters are freezing and the snow, and for that matter ice, is not uncommon, the extra days are added to cover a possible Students Stay Home Day due to harsh weather conditions. Also, some districts set in-service days for teacher training, and occasional off days for teachers, and these are normally held two to three times in a year.

The number of school days by state is represented in the table below:

No

State

Average Number of School Days

1

Illinois

185

2

North Carolina

185

3

Florida

184

4

New York

182

5

Utah

182

6

West Virginia

182

7

Arizona

181

8

California

181

9

Connecticut

181

10

Delaware

181

11

District of Columbia

181

12

Georgia

181

13

Kansas

181

14

Mississippi

181

15

New Jersey

181

16

Pennsylvania

181

17

South Carolina

181

18

Virginia

181

19

Alabama

180

20

Alaska

180

21

Hawaii

180

22

Indiana

180

23

Iowa

180

24

Kentucky

180

25

Maine

180

26

Maryland

180

27

Massachusetts

180

28

Michigan

180

29

Nevada

180

30

New Hampshire

180

31

Ohio

180

32

Oklahoma

180

33

Rhode Island

180

34

Tennessee

180

35

Texas

180

36

Washington

180

37

Wisconsin

180

38

Arkansas

179

39

Montana

179

40

Louisiana

178

41

Nebraska

178

42

Missouri

177

43

New Mexico

177

44

Vermont

177

45

Minnesota

176

46

North Dakota

176

47

Wyoming

175

48

Idaho

173

49

South Dakota

173

50

Oregon

172

51

Colorado

171

To calculate how many days in a school day, you may use “Day Counter” or “Days Between Dates” and input the starting date and the ending date of the school year to compute the exact result.

How Many Hours Are Required in a School Day or School Year?

States often regulate school time by mandating a specific number of hours or minutes per school year. According to the Education Commission of the States, 39 states have such regulations. Some states offer flexibility, allowing districts to meet requirements either by the number of days or by total hours. For instance, Oklahoma permits either 180 days or 1,080 hours over 165 days.

In most of these states (26 out of 39), the annual time requirements vary by grade level. For example, South Dakota requires 875 hours per year for fourth graders but 962.5 hours for eighth graders. On average, fourth graders across these states need 997.8 hours per year, while 11th graders need between 720 hours (including lunch time) in Arizona to 1,260 minutes in Texas. The average requirement for 11th graders is 1,034.8 hours per year.

Alternatively, 29 states and D.C. set daily time requirements. In 16 of these, the requirements differ by grade level. For example, Pennsylvania mandates 2.5 hours for kindergarten, 5 hours for grades 1-8, and 5.5 hours for grades 9-12. Eighth graders' school days can range from 3 hours in Maryland and Missouri to 6.5 hours in Tennessee. New Hampshire and Oregon even set maximums for school day lengths - 6 hours in New Hampshire and 8 hours in Oregon.

Texas uniquely requires a minimum of 75,600 minutes (equivalent to 1,260 hours) per school year, including all breaks. Although previously, Texas mandated 7 hours per school day, including breaks, this would amount to a 180-day school year if followed.

How Many Weeks Are In A School Year?

To calculate how many weeks are in a school year, you can divide the number of school days by 7. For example:

  • How many weeks are in a school year in california: A school year has 181 days, dividing 181 by 7 gives approximately 25.8 weeks.
  • How many weeks are in a school year in Massachusetts: A school year with 180 days, dividing 180 by 7 results in about 25.7 weeks.
  • How many weeks in a school year in New York: A school year with 182 days, dividing 182 by 7 results in about 26 weeks.

This method provides a straightforward way to estimate the length of the school year in weeks, helping students, parents, and educators plan their schedules accordingly.

How Many Months Are In A School Year?

To convert the number of weeks in a school year to months, you can use the average number of weeks in a month. Typically, each month contains about 4.35 weeks. Using this figure, you can calculate the number of months in a school year:

Calculation: 40 weeks ÷ 4.35 weeks per month = approximately 9.2 months

Thus, the average school year in the United States is roughly 9.2 months long. This period covers the majority of the calendar year, providing a substantial time frame for educational activities while allowing for breaks and holidays.

FAQs

Which state has the shortest school day?

Maryland and Missouri have the shortest school day for eighth graders, at 3 hours.

Which state has the longest school day?

Tennessee has the longest school day for eighth graders, at 6.5 hours.

Which states have a minimum number of school days per year?

Most states set a minimum number of school days per year. Here are some examples:

  • California: 180 days
  • Texas: 180 days (alternative: 75,600 minutes)
  • New York: 180 days
  • Florida: 180 days
  • Pennsylvania: 180 days

In conclusion, the number of school days varies significantly depending on the state in the U.S. While each state sets its own requirements, the typical range is between 160 and 180 days per year. This variation reflects the diverse educational policies and priorities across the country.