See Easter Break above. Summer Vacation or Break – Lasts for about 11–16 weeks, starting anywhere from late May to late June, and ending anywhere from late August to the day after Labor Day in early September. This often depends on the region – for example, most schools in the Northeastern United States end in June and start just after Labor Day, while the majority of schools in the Southern U.S. have schools end in May and start again in August. Teacher's Day off – Exists in some school districts, being two to three days at any time in school calendar Inservice day(s) – Scheduled breaks for teachers to participate in in-season training or discussions, or to attend the state or national conventions held by a teacher's union. All federal and state holidays – That includes religious holidays, such as Good Friday, and sometimes Jewish and Islamic holidays, depending on school demographic. Note: Often in charter schools breaks are shorter due to the extended number of days students spend in school (200 days vs. 180 days for standard public schools). College breaks Colleges and universities vary widely. Some closely follow the K-12 break schedule, others have the same but longer breaks to accommodate students who live farther away and wish to return home for holidays. Most colleges and universities have the following breaks: Thanksgiving/Fall Break – end of November (The week of Thanksgiving – 3 days before Thanksgiving, Thanksgiving Day, and the day after – the Friday before the break is considered a half-day). Winter Break – mid-December to late January Spring Break – a week or two in March or April (usually starting on Good Friday) Summer Break – Early/mid-May to between late August and the day after Labor Day in September (usually lasting about 12–18 weeks). Most colleges and university years are divided into two semesters. The first starting from the beginning of the year (August/September) until mid-December, and the second lasting from January until early May. Winter and summer classes could be taken in between the breaks. Duration Public elementary and secondary schools averaged (at the state level) between 170 and 180 school days in the 2007–08 academic year. Different states have different legal minimum requirements for instructional days and hours per year. Asia China Summer holidays usually last from early July to end of August. The winter holiday usually lasts 1 month, and its time varies