# How to add a timer to a Zoom meeting Three ways to put a countdown timer in Zoom: the built-in timer app, screen sharing, or a shared timer link every participant opens in their own browser. A visible timer keeps a Zoom meeting honest: everyone sees how much time an agenda item has left, and wrap-ups stop being awkward interruptions. There are three ways to get one into a meeting — Zoom's built-in timer app, screen-sharing a timer page, or giving participants a timer link they open themselves. This guide covers all three and when each fits. The link method uses MaestroTimer, where every view is a URL — participants watch a synced timer in their own browsers while you control it from any device. ## Does Zoom have a built-in timer? Yes. Zoom's App Marketplace has a free Timer app that runs inside the desktop client: preset or custom countdowns and an option to show the timer to all participants. Its limits define when you need more: it runs in the desktop client rather than on phones or the web client, and it stays inside that one meeting — there is no rundown you prepare in advance, no control from a second device, and nothing a co-host outside the call can operate. For a plain internal meeting it is enough; for a webinar, a panel, or anything with a schedule, it runs out early. ## Method 1: screen-share a timer The quickest upgrade is sharing a browser tab that shows a timer page. The steps: 1. Create a room in MaestroTimer, add a timer, and open the room's viewer link in a browser window. Fullscreen it for a clean look. 2. In Zoom, click "Share Screen" and select that browser window. 3. For more flexibility, use "Advanced", then "Portion of Screen", and place the capture rectangle over the timer so the rest of your screen stays private. 4. Control the countdown from another device — the shared window updates live. ## Where screen sharing falls short Screen sharing puts the timer in the one slot Zoom gives you for content. The moment a presenter shares slides, the timer disappears — which is usually exactly when the countdown matters most. It also shows the timer at whatever size Zoom's layout allows, with sharing chrome around it. Both problems come from the same cause: the timer is competing for the content slot. The next method removes it from that slot entirely. ## Method 2: give every participant a timer link Instead of pushing pixels through Zoom, put the link in the chat. Each participant opens the room's viewer in their own browser — a second window, a second monitor, or a phone — and every copy stays in sync, because they all display the same room. This survives everything screen sharing cannot: presenters share slides and the timer stays visible; attendees on any device see it; and the meeting host is no longer the display. Different people can get different views, too — the viewer for most, the agenda view for the room's schedule, and the moderator view for a host who also sends messages. You control the countdown from the controller view on any device. A wrap-up threshold changes every participant's display as time runs low, and a bold, colored, or flashing message reaches all of them at once — no interrupting the speaker. ## Method 3: a timer as its own participant For a production-grade setup, the timer can join the meeting as a participant: [OBS Studio](https://maestrotimer.com/articles/countdown-timer-obs)'s virtual camera renders a browser source showing the viewer, and Zoom treats that camera as a person in the grid. The timer survives everything — screen shares, spotlighting, gallery view — because it is not content, it is an attendee. The trick that makes one computer enough: you join the meeting twice — once as yourself from the Zoom app, once from a browser tab as the timer. 1. In OBS, add a Browser source pointed at the room's viewer link, 1280 × 720 for a 16:9 camera feed, then click "Start Virtual Camera" and leave OBS running. 2. In the Zoom web portal, under Settings → In Meeting (Advanced), enable "Show a 'Join from your browser' link" — the browser join is what lets the same computer enter twice. 3. Start the meeting normally from the Zoom app, copy the invite link, open it in a browser tab, and choose "Join from your browser". 4. Name the browser participant "Timer" so the grid explains itself, allow camera access, and pick "OBS Virtual Camera" as its camera. 5. Mute the timer participant and do not connect its audio — the same computer on the call twice with two live audio paths is an instant echo. ## Run the whole agenda, not one countdown A meeting is usually several timed items, and this is where a rundown beats a single timer. Name each timer after its agenda item, link them so the next starts when the previous ends, or schedule the first to start at the meeting's published time. Before the meeting, the live connections view lists every attached device, so a host can confirm the co-host's screen, the shared-room display, and the OBS machine are all receiving. Count-up mode covers open discussions where elapsed time matters more than a deadline. ## FAQ ### Does Zoom have a timer built in? Yes — a free Timer app in Zoom's App Marketplace, running inside the desktop client with preset and custom countdowns. It has no rundown, no second-device control, and does not run on mobile or the web client, which is where a browser-based timer takes over. ### How do participants see the timer if I stop sharing my screen? Give them the timer's viewer link in the chat instead of sharing it. Each person opens it in their own browser and all copies stay in sync — nothing depends on your screen share. ### Can people on phones see the timer? Yes. The viewer link opens in any browser, including mobile ones, so a participant on a phone sees the same live countdown as everyone else. ### Does this work in Zoom webinars? Yes. Panelists open the viewer link like any participant, or you pin an OBS virtual camera as the timer's own video feed so it stays visible regardless of what is being shared. **Keep your next Zoom meeting on time** — MaestroTimer runs in the browser: drop the viewer link in the chat and every participant watches a synced countdown while you control it from any device. Wrap-up colors, messages, and a live connections view are built in. [Try MaestroTimer](https://maestrotimer.com)