Share with Parents
Help other parents find this calendar
School Open
Dismissal: 3:30 PM
Next 7 Days
1 day offApril 2026
Coming Up
1 this weekSchool Breaks
Holidays (No School)
The Duncan school calendar for the 2025-26 school year runs from Thursday, August 14, 2025 to Thursday, May 21, 2026 in Duncan, Oklahoma.
- •4 scheduled breaks and 25 holidays throughout the year
- •Spring break: Mar 16 – Mar 20
- •Winter break: Dec 19 – Jan 2
Duncan starts school 5 days earlier than most Oklahoma districts. Winter break starts 3 days earlier than the most common Oklahoma schedule. Spring break aligns with the most common Oklahoma schedule.
Download the iCal file above to sync all Duncan dates with your phone or computer.
Frequently Asked Questions
Is Duncan school open today?
Yes, Duncan is open today. Check the weekly calendar above for upcoming school days and closures.
When is the next day off for Duncan?
The next day off is Friday, May 1, 2026 for Inclement Weather Day/No School.
When is the first day of school for Duncan?
The first day of school for Duncan in 2025-26 is Thursday, August 14, 2025.
When is the last day of school for Duncan?
The last day of school for Duncan in 2025-26 is Thursday, May 21, 2026.
When is spring break for Duncan?
Spring break for Duncan is Monday, March 16, 2026 to Friday, March 20, 2026.
When is winter break for Duncan?
Winter break for Duncan is Friday, December 19, 2025 to Friday, January 2, 2026.
When do students go back to school after winter break?
Students in Duncan return to school after winter break on Monday, January 5, 2026. Winter break ends on Friday, January 2, 2026.
When is Thanksgiving break for Duncan?
Thanksgiving break for Duncan is Friday, October 17, 2025 to Monday, October 20, 2025.
How do I add Duncan calendar to my phone?
Click the "Add to Calendar" button at the top of this page to download the iCal (.ics) file. Then:
iPhone/iPad: Tap the downloaded file, then tap "Add All" to add events to your Calendar app.
Android: Open the file with Google Calendar, review the events, and tap "Import".
Google Calendar (web): Go to Settings → Import & Export → Select the .ics file → Import.
Outlook: Double-click the file or drag it into your Outlook calendar.
Apple Calendar (Mac): Double-click the file or go to File → Import → select the .ics file.
What school district is Duncan, OK in?
Duncan, Oklahoma is served by Duncan. This page shows the 2025-26 school calendar including first day, last day, breaks, and holidays.
When does school start in Duncan?
School in Duncan (Duncan) starts on Thursday, August 14, 2025 for the 2025-26 school year.
Get Calendar Alerts
We'll email you when Duncan updates their calendar.
Other Oklahoma Districts
Last updated: December 31, 2025
Source: Duncan Official Calendar