The length of a school year varies by country, state, and educational level, but here are some general details:

United States

• Most public schools have about 180 school days per year, though this can range from 160 days (e.g., Colorado) up to 186 days (e.g., Kansas)

• Private schools often have around 170 days.
• Colleges and universities typically have shorter academic years, around 140 to 160 days

• The school year usually spans about 36 to 40 weeks.
• The school year is commonly divided into two semesters: fall (late August/early September to December) and spring (January to May/June)

Other Countries

• Australia: The school year is about 200 days , divided into four terms from late January/early February to mid-December, with breaks between terms and a 1-2 month summer vacation

• Philippines: The school year lasts about 9 to 10 months with at least 200 days of school, divided into quarters

• Ireland: Primary schools have a minimum of 183 teaching days, secondary schools about 167 days, running from September to May/June

Summary

• A typical school year in many places is roughly 180 to 200 days of instruction.
• The exact number of days and length of breaks depend on local regulations and traditions.
• The longest breaks are usually in summer, lasting from 6 weeks up to 3 months depending on the country

Thus, a school year generally spans about 9 to 10 months with around 180 instructional days in the U.S. and varies internationally from about 165 to 200 days depending on the region