School Start and End Times for 2021-22

Changing Start and End Times for 2021-22

As we look ahead to the 2021-22 school year, we are planning to change start and end times. These changes will help create a stronger educational experience for students. This website describes why updating start and end times is so important, and how these new times were decided on.

What’s changing for 2021-22?

  • Every school will start at one of three times: 7:50, 8:40, or 9:30. End times will vary by grade level, with elementary, middle, and high schools dismissing at different times.
  • SFUSD will standardize the length of the school day at elementary and middle schools.
  • Every school will offer an early release day once per week to support common planning time and professional development for teachers.
  • SFUSD will evaluate how well these changes work next fall, and may consider adjusting some schools’ start times again for the 2022-23 school year. If a new start time is particularly difficult or burdensome for a school community, we may consider changing it for the 2022-23 school year.

Why make these changes?

  • Bring SFUSD into compliance with a new state law (SB 328) which requires older students to start school later. This will help improve health and academic outcomes for studentsResearch shows that later start times can improve teens’ physical health, mental health, and academic performance. Biological changes that occur at the onset of puberty can cause adolescents’ natural sleep cycles to shift up to two hours later. This makes it difficult for many teenagers to fall asleep before 11 p.m. Studies have shown that teenagers who don’t get enough sleep often suffer physical and mental health problems, and perform worse academically. To address this, the American Academy of Pediatrics (AAP) recommends middle and high schools start class at 8:30 a.m. or later.
  • Provide all schools with early release once per week to support common planning time and professional development for teachers. This will give school staff more time to plan rigorous lessons, prepare materials, collaborate with colleagues, and participate in professional development that will support student achievement.
  • Provide predictability, consistency and clarity for families and school communities. Moving to 3 start times and standardizing the length of the school day will make it easier to coherently align supports and resources in service of our students.
  • Save millions of dollars each year on transportation costs, which can instead be spent on directly supporting students. Spacing school start times out will allow the district to use buses more efficiently. If start times are spaced out by 50 minutes (7:50, 8:40, and 9:30), each bus can be used to transport students to three different schools. The most dramatic changes could have resulted in $5.1 million in cost savings. However, the proposal we developed using student centered guiding principles will save about $3 million in annual transportation costs.

How did SFUSD come up with these changes?

  • Changing school start times is a difficult problem. 
    • Even if every school were to start at one of three standard times, there are still approximately 100 novemdecillion potential combinations to choose from (that’s a 1 followed by 62 zeroes). When you add in constraints about which schools can start at which times and try to account for the unique needs of individual school communities, the problem becomes even more complex. 
    • In addition to the mathematical complexity of the problem, any changes are inevitably going to make some people unhappy. Every school that shifts to a new start time is going to have some families and school staff who are thrilled with the changes, and others who will struggle to make the new time work for them.
  • SFUSD partnered with a research team to write an algorithm that can sift through every potential scenario to help SFUSD staff make better decisions.
    • The team consists of three researchers: Sebastien Martin, a professor at Northwestern’s Kellogg School of Management; Arthur Delarue, a fifth year PhD student at MIT; and Zhen Lian, a fifth year PhD student at Cornell. 
    • All three have experience working on similar transportation optimization problems for places like Boston Public Schools, Denver Public Schools, and Lyft.
    • The algorithm took input from SFUSD staff, combed through all of the potential solutions, and showed thousands of possible scenarios that met the District’s goals:
      1. Reduce transportation costs
      2. Shift older students into later start times
      3. Add a weekly early release day to support planning and professional development for teachers
      4. Minimize changes for families, especially at the elementary school level
    • District leaders then reviewed the scenarios, made adjustments to account for the unique needs of individual school sites, and developed a proposal that balanced each of these goals. 
  • The following guiding principles were used when developing the new start times:
    • Seek solutions that are fiscally responsible while holding equity at the center.
    • Start all schools at one of three times: 7:50, 8:40, or 9:30. 
    • Start PK SDC programs at stand-alone early education schools at 8:40 am so students have the same experience as their general education peers.
    • Start PK SDC programs that are co-located with an elementary school at the same time as the K-5 program.
    • Standardize the length of the school day for elementary and middle schools and align early release on Wednesday afternoons.
    • Seek to minimize the degree of change between the new start times and pre-pandemic start times for elementary schools.
    • Start middle schools at 9:30 am and start high schools at 8:40 am to bring SFUSD into compliance with SB 328 which requires secondary students to have later start times by July 1, 2022. 
    • Give K-8 schools the option of another year to transition their middle school grades to a 9:30 am start time.
    • Start alternative high schools at 9:30, in order to meet students’ unique needs.

School Start and End Times for 2021-22

Early Education Schools and Year Round PK

Sch. ID

Sch. Name

Start Time

End Time

Early Release Day

Early Release Time

903 Argonne EES 7:30 AM 5:30 PM    
903 Argonne EES SDC 8:40 AM 12:40 PM    
903 Argonne EES TK 8:00 AM 2:00 PM Wednesday 1:00 PM
911 Bryant ES PK 7:30 AM 5:45 PM    
911 Bryant PK SDC 7:50 AM 11:50 AM    
906 Carmichael (Bessie) PK 9:30 AM 3:35 PM Wednesday 2:30 PM
906 Carmichael (Bessie) PK SDC 9:30 AM 1:30 PM    
449 Carmichael (Bessie) TK 9:30 AM 3:35 PM Wednesday 2:30 PM
941 Chavez (Cesar) PK 8:40 AM 2:55 PM Wednesday 1:40 PM
941 Chavez (Cesar) PK SDC 8:40 AM 12:40 PM    
994 Cobb (Dr William L) PK 8:40 AM 2:55 PM Wednesday 1:40 PM
994 Cobb (Dr William L) PK SDC 8:40 AM 12:40 PM    
525 Cobb (Dr William L) TK 8:40 AM 2:55 PM Wednesday 1:40 PM
905 Drew (Dr Charles) PK 7:30 AM 5:30 PM    
507 Drew (Dr Charles) TK 7:50 AM 2:05 PM Wednesday 12:50 PM
521 El Dorado PK SDC 7:50 AM 11:50 AM    
925 Excelsior at Guadalupe PK 7:30 AM 5:30 PM    
925 Excelsior at Guadalupe PK SDC 8:40 AM 12:40 PM    
938 Grattan PK 7:45 AM 5:45 PM    
908 Harte (Bret) ES PK 8:45 AM 5:45 PM    
453 Harte (Bret) ES TK 8:40 AM 2:55 PM Wednesday 1:50 PM
932 Huerta (Dolores) PK 8:40 AM 2:55 PM Wednesday 1:40 PM
948 Jefferson EES 8:00 AM 5:30 PM    
948 Jefferson EES SDC 8:40 AM 12:40 PM    
931 King (Thomas Starr) PK 7:50 AM 2:05 PM Wednesday 12:50 PM
910 L. Havard EES 7:45 AM 5:45 PM    
910 L. Havard EES SDC 8:40 AM 12:40 PM    
664 Lafayette PK SDC 7:50 AM 11:50 AM    
921 Las Americas PK (at Moscone) 7:30 AM 5:30 PM    
921 Las Americas PK (at Moscone) SDC 8:40 AM 12:40 PM    
917 Lau (Gordon) PK 8:40 AM 2:55 PM Wednesday 1:40 PM
923 Mahler, Theresa S. EES 7:30 AM 5:30 PM    
923 Mahler, Theresa S. EES SDC 8:40 AM 12:40 PM    
951 Malcolm X Academy PK 8:40 AM 2:55 PM Wednesday 1:40 PM
951 Malcolm X Academy PK SDC 8:40 AM 12:40 PM    
830 Malcolm X Academy TK 8:40 AM 2:55 PM Wednesday 1:40 PM
549 McCoppin (Frank) PK SDC 9:30 AM 1:30 PM    
950 McLaren EES 7:30 AM 5:30 PM    
950 McLaren EES SDC 8:40 AM 12:40 PM    
950 McLaren EES TK 8:30 AM 2:30 PM Wednesday 1:30 PM
724 Mission Education Center ES 8:40 AM 2:55 PM Wednesday 1:40 PM
952 Muir (John) PK 8:40 AM 2:55 PM Wednesday 1:40 PM
952 Muir (John) PK SDC 8:40 AM 12:40 PM    
928 Noriega EES 8:00 AM 6:00 PM    
928 Noriega EES TK 8:00 AM 2:00 PM Wednesday 1:00 PM
946 Ortega (Jose) PK 7:50 AM 2:05 PM Wednesday 12:50 PM
946 Ortega (Jose) PK SDC 7:50 AM 11:50 AM    
975 Presidio EES 7:45 AM 5:45 PM    
975 Presidio EES SDC 8:40 AM 12:40 PM    
975 Presidio EES TK 8:00 AM 2:00 PM Wednesday 1:00 PM
977 R. Weill PK (at Rosa Parks) 7:30 AM 5:30 PM    
977 R. Weill PK (at Rosa Parks) SDC 7:50 AM 11:50 AM    
973 Revere PK 9:30 AM 3:45 PM Wednesday 2:30 PM
973 Revere PK SDC 9:30 AM 1:30 PM    
996 Rooftop PK 7:50 AM 2:20 PM Wednesday 12:35 PM
987 San Miguel EES 7:45 AM 5:45 PM    
987 San Miguel EES SDC 8:40 AM 12:40 PM    
982 Sanchez PK 7:50 AM 2:05 PM Wednesday 12:50 PM
955 Serra (Junipero) EES 7:30 AM 5:30 PM    
656 Serra (Junipero) ES TK 8:30 AM 2:30 PM Wednesday 1:30 PM
914 SF Public Montessori PK 7:45 AM 5:45 PM    
937 Sheridan PK 7:50 AM 2:05 PM Wednesday 12:50 PM
937 Sheridan PK SDC 7:50 AM 11:50 AM    
820 Sheridan TK 7:50 AM 2:05 PM Wednesday 12:50 PM
915 Stockton (Commodore) EES 7:45 AM 5:45 PM    
915 Stockton (Commodore) EES TK 8:15 AM 2:15 PM Wednesday 1:15 PM
927 Taylor (Edward R) PK 7:50 AM 2:05 PM Wednesday 12:50 PM
992 Tenderloin PK 8:40 AM 2:55 PM Wednesday 1:40 PM
997 Tule Elk Park EES 7:30 AM 5:30 PM    
997 Tule Elk Park EES SDC 8:40 AM 12:40 PM    
997 Tule Elk Park EES TK 8:30 AM 2:30 PM Wednesday 1:30 PM
965 Zaida T. Rodriguez 7:30 AM 5:30 PM    
965 Zaida T. Rodriguez TK 8:00 AM 2:00 PM Wednesday 1:00 PM

Elementary Schools

Sch. ID

Sch. Name

Start Time

End Time

Early Release Day

Early Release Time

413 Alamo ES 7:50 AM 2:05 PM Wednesday 12:50 PM
420 Alvarado ES 7:50 AM 2:05 PM Wednesday 12:50 PM
435 Argonne ES 7:50 AM 2:05 PM Wednesday 12:50 PM
456 Bryant ES 7:50 AM 2:05 PM Wednesday 12:50 PM
625 Carver (Dr George W) ES 8:40 AM 2:55 PM Wednesday 1:40 PM
603 Chavez (Cesar) ES 8:40 AM 2:55 PM Wednesday 1:40 PM
872 Chin (John Yehall) ES 9:30 AM 3:45 PM Wednesday 2:30 PM
509 CIS at DeAvila ES 8:40 AM 2:55 PM Wednesday 1:40 PM
478 Clarendon ES 9:30 AM 3:45 PM Wednesday 2:30 PM
481 Cleveland ES 9:30 AM 3:45 PM Wednesday 2:30 PM
525 Cobb (Dr William L) ES 8:40 AM 2:55 PM Wednesday 1:40 PM
537 Dolores Huerta 8:40 AM 2:55 PM Wednesday 1:40 PM
507 Drew (Dr Charles) ES 7:50 AM 2:05 PM Wednesday 12:50 PM
521 El Dorado ES 7:50 AM 2:05 PM Wednesday 12:50 PM
539 Feinstein (Dianne) ES 7:50 AM 2:05 PM Wednesday 12:50 PM
680 Flynn (Leonard R) ES 7:50 AM 2:05 PM Wednesday 12:50 PM
562 Garfield ES 7:50 AM 2:05 PM Wednesday 12:50 PM
575 Glen Park ES 8:40 AM 2:55 PM Wednesday 1:40 PM
589 Grattan ES 7:50 AM 2:05 PM Wednesday 12:50 PM
593 Guadalupe ES 8:40 AM 2:55 PM Wednesday 1:40 PM
453 Harte (Bret) ES 8:40 AM 2:55 PM Wednesday 1:40 PM
614 Hillcrest ES 7:50 AM 2:05 PM Wednesday 12:50 PM
644 Jefferson ES 7:50 AM 2:05 PM Wednesday 12:50 PM
544 Key (Francis Scott) ES 7:50 AM 2:05 PM Wednesday 12:50 PM
838 King (Thomas Starr) ES 7:50 AM 2:05 PM Wednesday 12:50 PM
664 Lafayette ES 7:50 AM 2:05 PM Wednesday 12:50 PM
670 Lakeshore ES 9:30 AM 3:45 PM Wednesday 2:30 PM
490 Lau (Gordon J) ES 8:40 AM 2:55 PM Wednesday 1:40 PM
476 Lee, Edwin and Anita Newcomer School 8:40 AM 2:55 PM Wednesday 1:40 PM
691 Longfellow ES 9:30 AM 3:45 PM Wednesday 2:30 PM
830 Malcolm X Academy ES 8:40 AM 2:55 PM Wednesday 1:40 PM
714 Marshall ES 8:40 AM 2:55 PM Wednesday 1:40 PM
549 McCoppin (Frank) ES 9:30 AM 3:45 PM Wednesday 2:30 PM
718 McKinley ES 7:50 AM 2:05 PM Wednesday 12:50 PM
505 Milk (Harvey) ES 9:30 AM 3:45 PM Wednesday 2:30 PM
722 Miraloma ES 7:50 AM 2:05 PM Wednesday 12:50 PM
724 Mission Education Center ES 8:40 AM 2:55 PM Wednesday 1:40 PM
729 Monroe ES 8:40 AM 2:55 PM Wednesday 1:40 PM
723 Moscone (George R) ES 8:40 AM 2:55 PM Wednesday 1:40 PM
650 Muir (John) ES 8:40 AM 2:55 PM Wednesday 1:40 PM
735 New Traditions ES 9:30 AM 3:45 PM Wednesday 2:30 PM
746 Ortega (Jose) ES 7:50 AM 2:05 PM Wednesday 12:50 PM
638 Parker (Jean) ES 8:40 AM 2:55 PM Wednesday 1:40 PM
786 Parks (Rosa) ES 7:50 AM 2:05 PM Wednesday 12:50 PM
569 Peabody (George) ES 7:50 AM 2:05 PM Wednesday 12:50 PM
790 Redding ES 8:40 AM 2:55 PM Wednesday 1:40 PM
816 Sanchez ES 7:50 AM 2:05 PM Wednesday 12:50 PM
656 Serra (Junipero) ES 9:30 AM 3:45 PM Wednesday 2:30 PM
814 SF Public Montessori ES 8:40 AM 2:55 PM Wednesday 1:40 PM
820 Sheridan ES 7:50 AM 2:05 PM Wednesday 12:50 PM
823 Sherman ES 7:50 AM 2:05 PM Wednesday 12:50 PM
488 Sloat (Commodore) ES 8:40 AM 2:55 PM Wednesday 1:40 PM
834 Spring Valley Science ES 8:40 AM 2:55 PM Wednesday 1:40 PM
782 Stevenson (Robert Louis) ES 7:50 AM 2:05 PM Wednesday 12:50 PM
842 Sunnyside ES 9:30 AM 3:45 PM Wednesday 2:30 PM
750 Sunset ES 9:30 AM 3:45 PM Wednesday 2:30 PM
848 Sutro ES 9:30 AM 3:45 PM Wednesday 2:30 PM
513 Taylor (Edward R) ES 7:50 AM 2:05 PM Wednesday 12:50 PM
859 Tenderloin ES 8:40 AM 2:55 PM Wednesday 1:40 PM
862 Ulloa ES 9:30 AM 3:45 PM Wednesday 2:30 PM
867 Visitacion Valley ES 8:40 AM 2:55 PM Wednesday 1:40 PM
497 Webster (Daniel) ES 7:50 AM 2:05 PM Wednesday 12:50 PM
876 West Portal ES 7:50 AM 2:05 PM Wednesday 12:50 PM
801 Wo (Yick) ES 9:30 AM 3:45 PM Wednesday 2:30 PM

K-8 Schools

Sch. ID

Sch. Name

Start Time

End Time

Early Release Day

Early Release Time

618 Buena Vista Horace Mann 6-8 9:30 AM 4:00 PM Wednesday 2:15 PM
618 Buena Vista Horace Mann K5 9:30 AM 3:45 PM Wednesday 2:30 PM
449 Carmichael (Bessie) 6-8 9:30 AM 4:00 PM Wednesday 2:15 PM
449 Carmichael (Bessie) K5 9:30 AM 3:45 PM Wednesday 2:30 PM
676 Lawton 6-8 9:30 AM 4:00 PM Wednesday 2:15 PM
676 Lawton K5 9:30 AM 3:45 PM Wednesday 2:30 PM
479 Lilienthal 6-8 7:50 AM 2:20 PM Wednesday 12:35 PM
479 Lilienthal K5 7:50 AM 2:05 PM Wednesday 12:50 PM
760 Revere 6-8 9:30 AM 4:00 PM Wednesday 2:15 PM
760 Revere K5 9:30 AM 3:45 PM Wednesday 2:30 PM
796 Rooftop 6-8 7:50 AM 2:20 PM Wednesday 12:35 PM
796 Rooftop K5 7:50 AM 2:05 PM Wednesday 12:50 PM
493 SF Community 6-8 9:30 AM 4:00 PM Wednesday 2:15 PM
493 SF Community K5 9:30 AM 3:45 PM Wednesday 2:30 PM
485 Yu (Alice Fong) 6-8 8:40 AM 4:00 PM Wednesday 2:15 PM
485 Yu (Alice Fong) K5 9:30 AM 3:45 PM Wednesday 2:30 PM

Middle Schools

Sch. ID

Sch. Name

Start Time

End Time

Early Release Day

Early Release Time

431 Aptos MS 9:30 AM 4:00 PM Wednesday 2:15 PM
858 Brown Jr. (Willie) MS 9:30 AM 4:00 PM Wednesday 2:15 PM
632 Denman (James) MS 9:30 AM 4:00 PM Wednesday 2:15 PM
529 Everett MS 9:30 AM 4:00 PM Wednesday 2:15 PM
546 Francisco MS 9:30 AM 4:00 PM Wednesday 2:15 PM
404 Giannini (A.P.) MS 9:30 AM 4:00 PM Wednesday 2:15 PM
607 Hoover (Herbert) MS 9:30 AM 4:00 PM Wednesday 2:15 PM
710 King Jr (Dr Martin L) MS 9:30 AM 4:00 PM Wednesday 2:15 PM
634 Lick (James) MS 9:30 AM 4:00 PM Wednesday 2:15 PM
708 Marina MS 9:30 AM 4:00 PM Wednesday 2:15 PM
778 Presidio MS 9:30 AM 4:00 PM Wednesday 2:15 PM
797 Roosevelt MS 9:30 AM 4:00 PM Wednesday 2:15 PM
868 Visitacion Valley MS 9:30 AM 4:00 PM Wednesday 2:15 PM

High Schools

Sch. ID

Sch. Name

Start Time

End Time

Early Release Day

Early Release Time

815 Asawa (Ruth) SOTA HS 8:40 AM 3:40 PM    
439 Balboa HS 8:40 AM 3:59 PM Wed 1:33 PM
764 Burton (Phillip & Sala) HS 8:40 AM 3:40 PM Wed 2:10 PM
742 Downtown High School 9:30 AM 3:10 PM Wed 12:30 PM
559 Galileo HS 8:40 AM 3:50 PM Wed, Thu 2:50 PM
743 Ida B. Wells HS 9:30 AM 2:30 PM Wed 1:30 PM
757 Jordan (June) HS 8:40 AM 3:40 PM Wed 2:25 PM
405 Lincoln (Abraham) HS 8:40 AM 3:55 PM Wed, Thu 2:57 PM
697 Lowell HS 8:40 AM 3:20 PM Wed 1:50 PM
853 Marshall (Thurgood) HS 8:40 AM 3:45 PM Wed, Thu 3:15 PM
725 Mission HS 8:40 AM 3:53 PM Tue, Thu 2:50 PM
651 O'Connell (John) HS 8:40 AM 3:45 PM Wed 1:50 PM
621 SF International HS 8:40 AM 3:45 PM Wed 12:40 PM
832 The Academy - SF @ McAteer HS 8:40 AM 4:00 PM Mon, Thu 3:25 PM M / 2:00 PM Th
785 Wallenberg (Raoul) HS 8:40 AM 3:50 PM Wed 1:35 PM
571 Washington (George) HS 8:40 AM 3:40 PM Wed, Thu 1:37 PM

County Schools

Sch. Name

Start Time

End Time

Youth Chance HS 9:30 AM 2:20 PM
Care Bayview 9:30 AM 2:45 PM
Care Buchanan 9:30 AM 2:45 PM
SF Civic Center Secondary MS 9:30 AM 2:00 PM
SF Civic Center Secondary HS 9:30 AM 2:00 PM
Hilltop HS 9:30 AM 3:30 PM
Transition Training Center (Access) 8:40 AM  
The Arc (Access) 8:40 AM  
McAuley 9:30 AM (10:00 AM Thu) 4:00 PM

Want to Learn More?