How to embed a classroom timer in Canvas

A visual or classroom timer inside a Canvas page or assignment keeps quizzes and activities on time.

Steps

Edit the page and open the Rich Content Editor's Embed tool
Choose Embed (the <> icon) and paste the iframe code from the widgets page.
Pick the timer length
For a 20-minute quiz use https://alarmwake.com/widget/timer/?s=1200&title=Quiz.
Save and test as a student
The Stop button appears in the frame when it rings.

Options

Build the exact link on the widgets page: length, title, cities, dark or light, transparent background, and the iframe code for platforms that need it. Every option is in the link itself, so nothing needs an account.

Other platforms

How to add a timer widget to Notion How to add a Pomodoro timer to Notion How to add a countdown widget to Notion How to add a world clock widget to Notion How to add a meeting planner to Notion How to embed a timer in ClickUp How to add a world clock tab in Microsoft Teams How to add a countdown to a Google Site How to add a timer or world clock to a monday.com board How to embed a timer in Coda How to embed a timer or clock in Confluence How to add a timer widget to Obsidian How to embed a classroom timer in Canvas Planning meetings across time zones for Asana teams

Questions

Will the alarm ring if I close the tab or the laptop?

No. No website can ring after the browser is closed or the computer sleeps. Keep this tab open, plug in, and the clock keeps the screen awake for you. The Ready-to-ring check under the clock shows what is set up correctly.

Does it work on my phone?

Yes on Android while the tab is open (behind other tabs is fine). On iPhone the page must stay in the foreground because Safari does not let web pages play sound from the background. Add it to the Home Screen for a full-screen bedside clock.

Is it loud enough for heavy sleepers?

Pick Loud buzzer or Siren, set the volume slider to full, and switch on the sums-to-stop option in Settings so the alarm cannot be dismissed half asleep. The sunrise light brightens the screen before the alarm too.

Can I use my own sound?

Yes. In Settings, choose an MP3, WAV or OGG file. It is stored in this browser only and never uploaded. There are also 60 built-in sounds, from a twin-bell alarm clock and a rooster to an air horn and a music box, on the sounds page.

What do the sleep sounds do?

Rain, brown noise, white noise, fan and ocean are generated in the browser and play until the alarm, then fade out as it rings. They keep the tab active through the night.

Does it need an internet connection?

Only to load the page the first time. Alarms, sounds, the sleep calculator and the sunrise math all run on your device, and the page works offline once it has been opened.

Is anything stored or sent?

Alarms and settings are saved in your browser's local storage. Nothing is sent to a server, and there is no account.

Can students hear the bell?

Yes, after they have clicked inside the timer once; browsers require an interaction before playing sound.