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Time Blocks

A classroom timer for the board. Tap a number and press Start, or rotate groups between stations, start a timer at the same time every day, and run a stopwatch for every team.

  • Free
  • Timer
  • Stations
  • Team stopwatches
  • K–12
  • No sign-up
The Time Blocks home screen on a green desk mat: a ready timer card with a sand timer, 10:00 in large numbers, minute buttons for 5, 10, 15, 20, 30, 45 and 60 with 10 selected, an Other button and a big red Start button. Under it are four cards: Rotate groups, Start at a time, Team timers, and Look and sound.

One timer board for the whole class day

Time Blocks came from three teachers' comments on TikTok. They wanted one timer on the board that could do more than count down. It opens ready to go: tap a number and press Start. The same board rotates groups between stations, starts a timer by itself at the same time every day, and runs a stopwatch for every team. The timer looks like a real one on a teacher's desk: a sand timer, a dial, a bar or big numbers. It's free, in English and Spanish, with no sign-up and no AI.

Launch Time BlocksSee how it works ↓

How Time Blocks works

  1. A running Time Blocks countdown at 10:12 with a dial timer drawn beside it, its blue section showing the time left, and Pause, +1 min, Reset and Edit buttons at the top right.

    Tap a number and press Start

    Open flintk12.com/timer on the board. Tap 5, 10, 15, 20, 30, 45 or 60 minutes, or Other for any time, and press Start. The timer has Pause, +1 min, Reset and Edit buttons. When time's up, the end sound plays and the board flashes.

  2. A 20-minute Time Blocks timer at 13:19 beside a sand timer, with Rotate in 3:19, station 2 of 4 under it and a bar of four station blocks, the first one used up and the second partly used.

    Rotate groups between stations

    Choose Rotate groups and pick 2 to 8 stations. Time Blocks splits the time into equal turns and shows how long until the next switch, so the class knows when to move.

  3. A Time Blocks timer set to 10:00 and waiting, with Starts at 10:30 AM under it, a full sand timer beside it, and Start now and Edit buttons at the top right.

    Start at the same time every day

    Choose Start at a time, pick a clock time and press Set timer. The timer waits on the board and starts by itself at that time every day, with nobody at the board. Press Start now to begin early.

  4. Four team stopwatches in round 2: Lions paused at 1:52 with 1 point, Tigers running at 2:08 with 3 points, Bears finished first at 1:36 with 2 points, and Eagles running at 2:08 with 0 points. Each tile has minus and plus point buttons, and the bar at the top has Start all, Pause all, Reset and Next round.

    Give every team a stopwatch

    Choose Team timers and pick 2 to 12 teams. Start all the stopwatches together. Tap a team to pause only that team while you check its answer, and press Finish to lock its time and give it a place. Turn on Points and each round gives 3, 2 and 1 points to the first three teams.

What's in Time Blocks

Pick the look and the end sound

Settings changes the desk (Green mat, Night desk or Paper) and the timer style (Bar, Dial, Sand or Big numbers). Pick an end sound (Classic, Bell, Buzzer or Whistle), a heads-up 1, 2 or 5 minutes before the end, the volume, and whether the board flashes.

The Time Blocks Settings window: Desk with Green mat, Night desk and Paper, Timer style with Bar, Dial, Sand and Big numbers, End sound with Classic, Bell, Buzzer and Whistle, Heads-up before the end with Off, 1 min, 2 min and 5 min, Volume, a Flash the board switch, and Language with English and Español.

Name the parts of a lesson

In More options, choose My own parts and name each one, like Warm-up, Work time and Clean up, with its own length. The board shows the part the class is in and how long until the next one. More options can also make a timer count up like a stopwatch.

A Science lab timer on the Night desk at 21:29, with Clean up in 16:29 and Work time beside it, and a bar split into three parts, Warm-up done and Work time partly used.

Use it in Spanish

Time Blocks opens in the browser's language. Change it in Settings, or share flintk12.com/timer?lang=es to open it in Spanish.

The Time Blocks home screen in Spanish: Temporizador with 10:00, an Empezar button, Más opciones, and the cards Rotar grupos, Empezar a una hora, Cronómetros de equipos and Aspecto y sonido.

Built for the classroom

  • The board holds up to 6 countdowns at once, and a timer can run up to 180 minutes.
  • Timers keep the right time through a reload, a sleeping laptop or a hidden tab.
  • The TIME BLOCKS button at the top goes back to the home screen while the timers keep running.
  • Pop out opens a small timer window that stays on top of Google Slides and other windows in Chrome and Edge.
  • Team timers can have a color for each team and a time limit for the round.

No accounts, and nothing to manage

Time Blocks needs no accounts for you or your students and asks for no student names. Your timers, team names and settings are saved only in the browser on that computer.

Time Blocks questions

What is Time Blocks?

A free classroom timer for the board. It runs countdowns, station rotations, timers that start at a set time, and stopwatches for up to 12 teams.

What grades is it for?

Any grade, K–12. It runs in the browser on the laptop connected to your projector or smartboard.

Can I time station rotations?

Yes. Choose Rotate groups, pick 2 to 8 stations, and Time Blocks splits the time into equal turns and shows when to switch. To give each part its own length, choose My own parts in More options.

Can a timer start by itself?

Yes. Choose Start at a time and pick a clock time. The timer starts by itself at that time every day while the page is open.

How do team points work?

Turn on Points in Team timers. When you press Next round, the first three teams to finish get 3, 2 and 1 points. You can also add or take away a point on any team.

Can I use it over Google Slides?

Yes, in Chrome and Edge. Press Pop out to open a small timer window that stays on top of your slides.

Is it in Spanish?

Yes. It opens in the browser's language, you can change it in Settings, and flintk12.com/timer?lang=es opens it in Spanish.

Do I need an account?

No. There are no accounts or sign-ins. Your timers and settings are saved in the browser on your device.

Does Time Blocks use AI?

No. Time Blocks doesn't use AI.

Sparky dressed as a student in a navy sweater and orange tie, holding a pencil, a checklist and an orange book.

Ready to start the clock?

Launch Time Blocks

Made by Flint