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Dallas ISD Early Start ADSY Calendar 2026-2027

Students at 12 ADSY elementary schools and incoming sixth graders at seven participating middle schools begin July 28. The July start includes 10 summer weekdays; Lida Hooe is Saturday School only.

Dallas ISD's Early Start ADSY Calendar begins Tuesday, July 28, 2026, for students at 12 participating elementary schools and incoming sixth graders at seven middle schools, and ends May 26, 2027. Lida Hooe participates in Saturday School only. The July-start schedule includes 10 summer weekdays, and ADSY includes five Saturday school dates.

Official calendar checked Oct 4, 2026Official district source

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Official calendar

Dallas ISD 2026–2027 Early Start ADSY key dates

Key dates for Dallas Independent School District 2026-2027 school calendar
Event	Date	Status
First Day of July-Start ADSY Classes	Jul 28, 2026	School opens
Labor Day	Sep 7, 2026	No classes
Fall Break	Oct 8, 2026 through Oct 9, 2026	No school
Thanksgiving Break	Nov 23, 2026 through Nov 27, 2026	No school
Early Release — Secondary Schools	Dec 16, 2026 through Dec 17, 2026	Early dismissal
Early Release — All Schools	Dec 18, 2026	Early dismissal
Winter Break	Dec 21, 2026 through Jan 4, 2027	No school
Martin Luther King Jr. Day	Jan 18, 2027	No classes
Presidents Day	Feb 15, 2027	No classes
Spring Break	Mar 15, 2027 through Mar 19, 2027	No school
Staff/Student Holiday	Mar 26, 2027	No classes
Inclement Weather Day	Mar 29, 2027	If needed
Inclement Weather Day	Apr 19, 2027	If needed
Early Release — Secondary Schools	May 24, 2027 through May 25, 2027	Early dismissal
Last Day of Class	May 26, 2027	School closes

Month by month

Dallas ISD 2026–2027 Early Start ADSY monthly calendar

Highlighted dates follow the published calendar; grouped or inferred entries are labelled. Today is determined in Central Time (America/Chicago).

School Day
Weekend
Holiday (No School)
School Break
First / Last Day
Important Date

July 2026

Dallas Independent School District calendar for July 2026
Mon	Tue	Wed	Thu	Fri	Sat	Sun
		1	2	3	4	5
6	7	8	9	10	11	12
13	14	15	16	17	18	19
20	21	22	23	24	25	26
27	28	29	30	31

Jul 28 First Day of July-Start ADSY Classes

August 2026

Dallas Independent School District calendar for August 2026
Mon	Tue	Wed	Thu	Fri	Sat	Sun
					1	2
3	4	5	6	7	8	9
10	11	12	13	14	15	16
17	18	19	20	21	22	23
24	25	26	27	28	29	30
31

September 2026

Sep 7 Labor Day

October 2026

Dallas Independent School District calendar for October 2026
Mon	Tue	Wed	Thu	Fri	Sat	Sun
			1	2	3	4
5	6	7	8	9	10	11
12	13	14	15	16	17	18
19	20	21	22	23	24	25
26	27	28	29	30	31

Oct 8–9 Fall Break
Oct 12 Professional Development Day (no classes)

November 2026

Dallas Independent School District calendar for November 2026
Mon	Tue	Wed	Thu	Fri	Sat	Sun
						1
2	3	4	5	6	7	8
9	10	11	12	13	14	15
16	17	18	19	20	21	22
23	24	25	26	27	28	29
30

Nov 3 Professional Development Day (no classes)
Nov 23–27 Thanksgiving Break

December 2026

Dallas Independent School District calendar for December 2026
Mon	Tue	Wed	Thu	Fri	Sat	Sun
	1	2	3	4	5	6
7	8	9	10	11	12	13
14ADSY Instructional School Day — Dec 14. Dallas ISD lists December 14 as an ADSY instructional school day; the Traditional Calendar is also in session that day.	15	16Early Release — Secondary Schools — Dec 16–17. Early release applies to middle and high schools only.	17Early Release — Secondary Schools — Dec 16–17. Early release applies to middle and high schools only.	18Early Release — All Schools — Dec 18. All schools dismiss early before winter break. • End of Second Nine Weeks — Dec 18 (calculated from calendar). The second nine weeks ends December 18, an all-school early-release day.	19	20
21Winter Break — Dec 21 – Jan 4. The official break ends January 4; January 5 is a separate professional-development day.	22Winter Break — Dec 21 – Jan 4. The official break ends January 4; January 5 is a separate professional-development day.	23Winter Break — Dec 21 – Jan 4. The official break ends January 4; January 5 is a separate professional-development day.	24Winter Break — Dec 21 – Jan 4. The official break ends January 4; January 5 is a separate professional-development day.	25Winter Break — Dec 21 – Jan 4. The official break ends January 4; January 5 is a separate professional-development day.	26Winter Break — Dec 21 – Jan 4. The official break ends January 4; January 5 is a separate professional-development day.	27Winter Break — Dec 21 – Jan 4. The official break ends January 4; January 5 is a separate professional-development day.
28Winter Break — Dec 21 – Jan 4. The official break ends January 4; January 5 is a separate professional-development day.	29Winter Break — Dec 21 – Jan 4. The official break ends January 4; January 5 is a separate professional-development day.	30Winter Break — Dec 21 – Jan 4. The official break ends January 4; January 5 is a separate professional-development day.	31Winter Break — Dec 21 – Jan 4. The official break ends January 4; January 5 is a separate professional-development day.

Dec 21 – Jan 4 Winter Break

January 2027

Dallas Independent School District calendar for January 2027
Mon	Tue	Wed	Thu	Fri	Sat	Sun
				1	2	3
4	5	6	7	8	9	10
11	12	13	14	15	16	17
18	19	20	21	22	23	24
25	26	27	28	29	30	31

Jan 5 Professional Development Day (no classes)
Jan 18 Martin Luther King Jr. Day

February 2027

Dallas Independent School District calendar for February 2027
Mon	Tue	Wed	Thu	Fri	Sat	Sun
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28

Feb 15 Presidents Day

March 2027

Dallas Independent School District calendar for March 2027
Mon	Tue	Wed	Thu	Fri	Sat	Sun
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31

Mar 15–19 Spring Break
Mar 26 Staff/Student Holiday
Mar 29 Inclement Weather Day

April 2027

Dallas Independent School District calendar for April 2027
Mon	Tue	Wed	Thu	Fri	Sat	Sun
			1	2	3	4
5	6	7	8	9	10	11
12	13	14	15	16	17	18
19	20	21	22	23	24	25
26	27	28	29	30

Apr 19 Inclement Weather Day

May 2027

Dallas Independent School District calendar for May 2027
Mon	Tue	Wed	Thu	Fri	Sat	Sun
					1	2
3	4	5	6	7	8	9
10	11	12	13	14	15	16
17	18	19	20	21	22	23
24	25	26	27	28	29	30
31

May 26 Last Day of Class

Planning notes

Dallas ISD 2026–2027 Early Start ADSY calendar notes

School calendar overview

The 2026–2027 Early Start ADSY school calendar begins Jul 28, 2026 and ends May 26, 2027.

Before you plan

This independent calendar does not determine ADSY eligibility. Confirm that your child is enrolled in the applicable program and verify campus-specific times, meals, transportation, and after-school arrangements directly with Dallas ISD or the school.

Major school breaks

Fall BreakOct 8 – 9, 2026
Thanksgiving BreakNov 23 – 27, 2026
Winter BreakDec 21, 2026 – Jan 4, 2027
Spring BreakMar 15 – 19, 2027

School year by the numbers

Student attendance days: 190 days; Calculated from official datesCalculated from 217 weekdays between the first and last student days, adjusting for 30 confirmed no-school weekdays, 2 conditional make-up weekdays currently listed without regular classes, 5 listed weekend attendance days. The total will change if the district activates a make-up date.
Total no-school weekdays: 30 weekdays; Calculated from official datesCounted from districtwide no-class events between the first and last student days. Weekends and shortened school days are excluded, and overlapping events count once.
Student no-school days: 3 days; Calculated from official datesCounts weekdays without regular classes outside holidays and multi-day breaks, including staff or planning days. Overlapping entries count once.
Listed early-release dates: 6 dates; Calculated from official datesCounted from official early-release entries; some dates apply only to the grades or campuses named in the calendar.
Longest listed break: 18 consecutive days; Calculated from official datesDec 19, 2026–Jan 5, 2027, including weekends. The stretch contains 12 confirmed no-school weekdays.
Long weekends: 4; Calculated from official datesCounts three- or four-day no-school stretches formed by a weekend plus one or two confirmed weekday closures. Longer school breaks are excluded.
Full-week breaks: 3 breaks; Calculated from official datesCounts continuous no-school stretches containing at least five confirmed weekdays without regular classes. Adjacent holidays and weekends remain part of the same break.

What to know

The ADSY year begins July 28, two weeks before the August 11 Traditional Calendar first day.
The official July 28-August 10 summer period contains 10 marked weekdays; weekends are not stored as instructional events.
Five ADSY dates fall on Saturdays. December 14 is separately marked as an ADSY instructional day, but the Traditional Calendar is also in session that Monday.
ADSY participation is campus- and grade-specific: incoming sixth graders participate at the seven listed middle schools, not every grade at those schools.
Lida Hooe is listed as a Saturday-school-only ADSY campus, so its students should not be assumed to follow the July early-start block.

Editorial summary

How the 2026-2027 Early Start ADSY schedule works

Early Start ADSY is not a districtwide calendar. Dallas ISD lists 13 elementary campuses, but Lida Hooe is Saturday School only; students at the other 12 elementary schools begin July 28. Incoming sixth graders at seven participating middle schools also begin July 28. The July 28 early start at those middle schools applies to incoming sixth graders, not seventh- or eighth-grade students.

Students with the July 28 ADSY start attend 10 summer weekdays before the Traditional Calendar begins: July 28-31, August 3-7, and August 10. Dallas ISD also schedules five Saturday school dates: September 12, October 17, November 14, January 9, and February 6. The ADSY calendar also marks Monday, December 14 as an instructional school day for the July-start ADSY schedule. The Traditional Calendar is also in session that day; Lida Hooe is Saturday School only.

Dallas ISD says students receive meals during the additional ADSY days, eligible students receive transportation, and after-school programs are available. Because ADSY participation depends on campus and grade, families should confirm enrollment and daily schedules with their school.

Common questions

Dallas ISD 2026–2027 Early Start ADSY calendar FAQs

What does ADSY mean in Dallas ISD?

ADSY stands for Additional Days School Year. Dallas ISD's Early Start program gives participating students additional learning time before the regular school year and on selected Saturdays. The July early start applies only to the campuses and grades identified by the district.

Which Dallas ISD schools participate in Early Start ADSY in 2026-2027?

Dallas ISD lists 13 elementary campuses: J. N. Ervin, John Q. Adams, José “Joe” May, Lee A. McShan Jr., Marcus Leadership Academy, H. S. Thompson, John Neely Bryan, Lida Hooe, Julian T. Saldivar, Ronald McNair, Birdie Alexander, Frank Guzick and Harrell Budd. Lida Hooe is Saturday School only. Incoming sixth graders also participate at Harold Wendell Lang Sr., Young Men's Leadership Academy at Fred F. Florence, Boude Storey, Sam Tasby, Royce West Leadership Academy, T. W. Browne and Hector P. Garcia middle schools.

When does the Dallas ISD ADSY school year begin?

The July-start ADSY schedule begins Tuesday, July 28, 2026, for students at 12 participating elementary schools and incoming sixth graders at seven middle schools. Lida Hooe participates in Saturday School only.

Which summer dates are included before the traditional school year starts?

The 10 summer weekdays are July 28-31, August 3-7, and August 10. The July 28-August 10 span includes two weekends, which are not class days.

What are the five ADSY Saturday school dates?

Saturday school is scheduled for September 12, October 17, and November 14, 2026, plus January 9 and February 6, 2027. These dates apply to participating ADSY students.

Why is December 14 marked on the ADSY Calendar?

Monday, December 14, 2026, is marked as an ADSY instructional school day for students in the July-start ADSY schedule. The Traditional Calendar is also in session that Monday. Lida Hooe participates in Saturday School only.

Do seventh- and eighth-grade students at ADSY middle schools start July 28?

No. Dallas ISD says the July 28 early start at the seven participating middle schools is for incoming sixth graders. Seventh- and eighth-grade students do not follow that early-start schedule.

Does Lida Hooe follow the July early-start schedule?

No. Dallas ISD lists Lida Hooe Elementary as Saturday School only, so the July 28-August 10 summer schedule does not apply there.

What do students do during Dallas ISD ADSY additional days?

Dallas ISD says ADSY days include reading and math, enrichment, teamwork and activities designed to build students' connection to school. Saturday sessions use themed activities. For participating sixth graders, the district lists 180 minutes of reading and math, 150 minutes of enrichment, and 90 minutes of group huddles or club activities during additional days.

When do ADSY students finish the 2026-2027 school year?

The final class day is Wednesday, May 26, 2027. All schools dismiss early that day, so families should get the exact release time from their campus.

Does the Dallas ISD ADSY Calendar have a fall break in 2026?

Yes. ADSY students have fall break October 8-9, 2026. October 12 is a professional-development day with no student classes, so students return Tuesday, October 13.

Do ADSY students get the same Thanksgiving break?

Yes. The ADSY Calendar shows Thanksgiving break from Monday, November 23, through Friday, November 27, 2026, with classes returning November 30.

When do ADSY students return after winter break?

Winter break runs December 21 through January 4. January 5 is a professional-development day with no classes, so students return Wednesday, January 6, 2027.

Is ADSY spring break different from the Traditional Calendar?

No. The ADSY PDF lists spring break for March 15-19, 2027. Students return Monday, March 22, and have a separate staff/student holiday on March 26.

Which ADSY dates have early dismissal?

ADSY students at participating middle schools have early release December 16-17, 2026, and May 24-25, 2027. ADSY elementary students do not have those secondary-only early-release dates. All ADSY campuses dismiss early December 18 and May 26.

Are meals and transportation available on additional ADSY days?

Dallas ISD says all participating students receive school meals during additional days, eligible students receive transportation, and after-school programs are available. Confirm the local arrangements with your campus.

What happens on the ADSY inclement weather dates?

March 29 and April 19 are labeled inclement weather days. Whether students attend can depend on closures and later district guidance, so check Dallas ISD announcements before those dates.

Where is the official Dallas ISD ADSY calendar PDF?

Use the official ADSY PDF link on this page. The Dallas ISD approved-calendars page also links both the ADSY document and the separate Traditional Calendar.

Reference

Dallas ISD 2026–2027 Early Start ADSY resources

Dallas ISD official website

District news, schools, enrollment information, and family resources.

View official source →

Dallas ISD approved calendars

The district's official Traditional and ADSY calendar downloads.

View official source →

Dallas ISD Early Start ADSY program

Participating campuses, student scope, meals, transportation, and family program information.

View official source →

Official 2026-2027 ADSY Calendar PDF

Dallas ISD's official Early Start Additional Days School Year calendar.

View official source →

2026-2027 Traditional Calendar

The district's standard calendar for students who do not follow the ADSY track.

Explore →

Source and scope

About the Dallas ISD 2026–2027 Early Start ADSY calendar

Data source

The schedule comes from Dallas ISD's 2026-2027 ADSY Calendar PDF. Program eligibility and family-service details come from the district's Early Start ADSY page, while the approved-calendars page confirms that ADSY is a separate official track.

How dates are handled

The PDF's July 28-August 10 label was split into three uninterrupted weekday events so weekends are not presented as class days. Five colored Saturday dates and the December 14 weekday were stored individually. Shared holidays, relevant elementary and middle school conferences, early releases, and conditional weather dates were transcribed from the ADSY document; employee-only and high-school-only dates were left out.

Updates

Campus participation, grade eligibility, daily hours, and the use of inclement weather dates can change through district or school announcements. Recheck the official ADSY program page and calendar PDF before relying on a date for transportation, child care, or attendance planning.

Disclaimer

Read the full methodology

Dallas ISD 2026–2027 Early Start ADSY sources & verification

Source confirmed

District: Dallas Independent School District
Dallas ISD 2026-2027 ADSY Calendar: View official source
Dallas ISD 2026-2027 Traditional Calendar: View official source
Dallas ISD Approved Calendars: View official source
Dallas ISD Early Start ADSY Program: View official source
Dallas ISD Staff Notice — ADSY Schools Start Next Week: View official source
Lida Hooe Elementary School Homepage: View official source
Source last checked: Oct 4, 2026
Revision count: 0

Report an error

Mon	Tue	Wed	Thu	Fri	Sat	Sun
		1	2	3	4	5
6	7	8	9	10	11	12
13	14	15	16	17	18	19
20	21	22	23	24	25	26
27	28First Day of July-Start ADSY Classes — Jul 28. First day for students in the July-start ADSY schedule. Lida Hooe is Saturday School only and does not follow the July early start.	29ADSY Summer Instruction — Jul 29–31. Students in the July-start ADSY schedule attend these three summer instructional days.	30ADSY Summer Instruction — Jul 29–31. Students in the July-start ADSY schedule attend these three summer instructional days.	31ADSY Summer Instruction — Jul 29–31. Students in the July-start ADSY schedule attend these three summer instructional days.

Mon	Tue	Wed	Thu	Fri	Sat	Sun
					1	2
3ADSY Summer Instruction — Aug 3–7. Students in the July-start ADSY schedule attend these five summer instructional days.	4ADSY Summer Instruction — Aug 3–7. Students in the July-start ADSY schedule attend these five summer instructional days.	5ADSY Summer Instruction — Aug 3–7. Students in the July-start ADSY schedule attend these five summer instructional days.	6ADSY Summer Instruction — Aug 3–7. Students in the July-start ADSY schedule attend these five summer instructional days.	7ADSY Summer Instruction — Aug 3–7. Students in the July-start ADSY schedule attend these five summer instructional days.	8	9
10ADSY Summer Instruction — Aug 10. Tenth and final weekday in the ADSY summer block before the Traditional Calendar begins August 11.	11	12	13	14	15	16
17	18	19	20	21	22	23
24	25	26	27	28	29	30
31

Mon	Tue	Wed	Thu	Fri	Sat	Sun
	1	2	3	4	5	6
7Labor Day — Sep 7. Staff/student holiday with no classes.	8	9	10	11	12ADSY Saturday School — Sep 12. One of five Saturday school dates for participating ADSY students.	13
14	15	16	17	18	19	20
21	22	23	24	25	26	27
28	29	30

Mon	Tue	Wed	Thu	Fri	Sat	Sun
			1	2	3	4
5	6	7	8Fall Break — Oct 8–9. Students and campus team members are off October 8-9.	9Fall Break — Oct 8–9. Students and campus team members are off October 8-9. • End of First Nine Weeks — Oct 9 (calculated from calendar). The first nine weeks ends October 9, during fall break.	10	11
12Professional Development Day (no classes) — Oct 12. Professional-development day with no student classes.	13	14	15	16	17ADSY Saturday School — Oct 17. One of five Saturday school dates for participating ADSY students.	18
19	20	21	22	23	24	25
26	27	28	29	30	31

Mon	Tue	Wed	Thu	Fri	Sat	Sun
						1
2	3Professional Development Day (no classes) — Nov 3. Professional-development day with no student classes.	4	5	6	7	8
9	10	11	12	13	14ADSY Saturday School — Nov 14. One of five Saturday school dates for participating ADSY students.	15
16	17	18	19	20	21	22
23Thanksgiving Break — Nov 23–27. Students are out for the full Monday-through-Friday week and return November 30.	24Thanksgiving Break — Nov 23–27. Students are out for the full Monday-through-Friday week and return November 30.	25Thanksgiving Break — Nov 23–27. Students are out for the full Monday-through-Friday week and return November 30.	26Thanksgiving Break — Nov 23–27. Students are out for the full Monday-through-Friday week and return November 30.	27Thanksgiving Break — Nov 23–27. Students are out for the full Monday-through-Friday week and return November 30.	28	29
30

Mon	Tue	Wed	Thu	Fri	Sat	Sun
				1Winter Break — Dec 21 – Jan 4. The official break ends January 4; January 5 is a separate professional-development day.	2Winter Break — Dec 21 – Jan 4. The official break ends January 4; January 5 is a separate professional-development day.	3Winter Break — Dec 21 – Jan 4. The official break ends January 4; January 5 is a separate professional-development day.
4Winter Break — Dec 21 – Jan 4. The official break ends January 4; January 5 is a separate professional-development day.	5Professional Development Day (no classes) — Jan 5. Students return from the winter no-class period on January 6.	6	7	8	9ADSY Saturday School — Jan 9. One of five Saturday school dates for participating ADSY students.	10
11	12	13	14	15	16	17
18Martin Luther King Jr. Day — Jan 18. Staff/student holiday with no classes.	19	20	21	22	23	24
25	26	27	28	29	30	31

Mon	Tue	Wed	Thu	Fri	Sat	Sun
1	2	3	4	5	6ADSY Saturday School — Feb 6. Fifth Saturday school date for participating ADSY students.	7
8	9	10	11	12	13	14
15Presidents Day — Feb 15. Staff/student holiday with no classes.	16	17	18	19	20	21
22	23	24	25	26	27	28

Mon	Tue	Wed	Thu	Fri	Sat	Sun
1	2	3	4	5End of Third Nine Weeks — Mar 5 (calculated from calendar). The third nine weeks ends March 5.	6	7
8	9	10	11	12	13	14
15Spring Break — Mar 15–19. Students return to class Monday, March 22.	16Spring Break — Mar 15–19. Students return to class Monday, March 22.	17Spring Break — Mar 15–19. Students return to class Monday, March 22.	18Spring Break — Mar 15–19. Students return to class Monday, March 22.	19Spring Break — Mar 15–19. Students return to class Monday, March 22.	20	21
22	23	24	25	26Staff/Student Holiday — Mar 26. No classes for students; Dallas ISD does not give this holiday a separate name on the calendar.	27	28
29Inclement Weather Day — Mar 29. Attendance depends on whether Dallas ISD uses this reserved inclement weather date; check district updates.	30	31

Mon	Tue	Wed	Thu	Fri	Sat	Sun
			1	2	3	4
5	6	7	8	9	10	11
12	13	14	15	16	17	18
19Inclement Weather Day — Apr 19. Attendance depends on whether Dallas ISD uses this reserved inclement weather date; check district updates.	20	21	22	23	24	25
26	27	28	29	30

Mon	Tue	Wed	Thu	Fri	Sat	Sun
					1	2
3	4	5	6	7	8	9
10	11	12	13	14	15	16
17	18	19	20	21	22	23
24Early Release — Secondary Schools — May 24–25. Early release applies to middle and high schools only.	25Early Release — Secondary Schools — May 24–25. Early release applies to middle and high schools only.	26Last Day of Class — May 26. Final student day; all schools dismiss early. • Early Release — All Schools — May 26. All schools dismiss early on the last day of class. • End of Fourth Nine Weeks — May 26 (calculated from calendar). The fourth nine weeks ends May 26, the last student day.	27	28	29	30
31