Many schools have 1 week off for Thanksgiving (mostly NE states I think), some just have 2-3 days. Spring Breaks range from the last 2 weeks in Feb to the last week in April (end of March, beginning of April and 2 weeks around Easter are the busiest). Summer Breaks range from end May-beginning of August (mostly Southern States) to end June-after Labor Day (Northern States). The general trend is school is starting later (some states have passed laws requiring school to start closer to, or after, Labor Day). The peark summer period (when most schools are off) is mid-June to mid-August. Remember that breaks change from state to state, county to county, and district to district.