How Do Great Schools Eliminate Wasted Time in the School Day and School Year?

by Michael Keany

September, 2026

Schools frequently say they need more time.

More time for reading. More mathematics. More intervention. More enrichment. More professional development. More collaboration.

But before adding minutes to the school day or days to the calendar, great schools ask a different question:

How much of the time we already have are we actually using well?

An 180-day calendar does not automatically produce 180 days of meaningful learning. Minutes disappear through slow transitions, late lesson starts, unnecessary announcements, inefficient meetings, excessive testing, poorly designed assemblies, repeated interruptions, discipline problems, and the familiar end-of-year assumption that “we're basically finished.”

Great schools treat time as an instructional resource.

Start With the Small Minutes

Consider a teacher who loses five minutes getting students settled at the beginning of every period.

Five minutes doesn't sound significant.

But across six periods, that's 30 minutes per day. Across 180 school days, that represents 90 hours.

The solution isn't rushing students. It's developing predictable routines.

The Education Endowment Foundation emphasizes explicitly teaching classroom routines as a way to maximize learning time. Greeting students at the door, establishing an immediate “do now,” teaching transitions, and practicing routines until they become automatic can create calmer classrooms while recovering instructional minutes.

Great schools don't repeatedly tell students, “Hurry up.”

They design routines that make wasted time less likely.

Protect the Beginning and End of Every Lesson

The opening minutes establish whether learning begins immediately or gradually.

Students should enter knowing:

Where do I go? What do I need? What should I begin?

The same principle applies at the end. Teachers shouldn't routinely stop meaningful instruction ten minutes early because students are packing backpacks.

Great schools develop schoolwide expectations for productive beginnings and endings while allowing teachers flexibility in how they achieve them.

Examine the Master Schedule

Some wasted time isn't created by teachers.

It's designed into the system.

How long are passing periods? How frequently are classes interrupted? How much instructional time disappears because of assemblies? Are intervention periods accomplishing their purpose? Does the schedule provide teachers meaningful collaborative time?

The Learning Policy Institute's study of four innovative schools found that thoughtfully reorganizing teacher and student time can support collaboration, professional learning, and richer learning opportunities. Importantly, these schools continued revising their schedules rather than treating the master schedule as permanent.

Great schools ask annually:

If we were designing our schedule from scratch to maximize learning, would it look like this?

Stop Stealing Time With Interruptions

Announcements can wait.

Forms can wait.

Nonemergency phone calls can wait.

Routine administrative requests can wait.

A 45-minute class interrupted for three minutes hasn't merely lost three minutes. Attention must be reestablished afterward.

Great principals therefore protect classrooms from unnecessary interruptions.

Instructional time becomes almost sacred.

Reclaim the Calendar

Wasted time also accumulates across the year.

The days before vacations become movie days. Testing season fragments instruction. June becomes academically optional.

Great schools resist these patterns.

They don't eliminate celebrations, field trips, performances, athletics, or traditions. Those experiences matter.

Instead, they ask whether each activity is worth the instructional time it consumes.

When additional learning time is needed, simply adding hours isn't sufficient either. Learning Policy Institute research emphasizes that expanded time works best when it provides high-quality opportunities such as well-designed tutoring, after-school learning, and purposeful summer programming.

More time only matters when it becomes better learning time.

Audit Time Like Money

Imagine asking every department:

“Where are we losing learning time unnecessarily?”

Teachers would know.

Students would know too.

Track late starts. Examine transition times. Review announcements. Analyze assemblies and testing calendars. Evaluate meetings. Ask students where classroom time routinely disappears.

Then eliminate the friction.

Five minutes recovered here.

Ten minutes there.

One unnecessary meeting removed.

One interruption prevented.

One wasted day reclaimed.

Individually, these changes appear small.

Across hundreds of students, dozens of teachers, and 180 days, they become enormous.

Great schools understand that time is one resource they can never replace.

Every minute doesn't need to contain instruction.

Students need recess, relationships, conversation, reflection, movement, celebration, and joy.

The goal isn't to create schools obsessed with efficiency.

The goal is to eliminate time that serves no worthwhile purpose.

Before great schools ask for a longer day or a longer year, they make certain they're making the most of the one they already have.

References

1. Education Endowment Foundation. “Routine Reset or Routine Re-teach?” April 21, 2022. Guidance on explicitly teaching routines to maximize classroom learning time.

2. Snyder, J., & Bae, S. Teachers' Time: Collaborating for Learning, Teaching, and Leading. Learning Policy Institute, 2018. Research examining innovative organization of teacher and student time.

3. Learning Policy Institute. Restarting and Reinventing School: Provide Expanded Learning Time. Research and recommendations concerning purposeful tutoring, after-school, summer, and other expanded-learning opportunities.

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Prepared with the assistance of AI software

OpenAI. (2026). ChatGPT (5.2) [Large language model]. https://chat.openai.com