Auto Advance Google Slides with a Countdown Timer (|] Tag Guide)

Quick Summary: 3 Steps to Add a Timer

Step 1

Install Live Slides Timer

Auto-advance requires the extension running in the presenting browser.

Step 2

Add a countdown tag with the |] modifier

Example: {{2:00-|]}} for a 2-minute countdown that flips to the next slide at zero.

Step 3

Optional: combine with bell sound

Use {{2:00-|@|]}} so the room hears a chime at the same moment the slide advances.

Step 4

Rehearse in Slideshow

Run through once to confirm pacing; use Y to pause if Q&A interrupts a timed segment.

Why Auto-Advance Matters

Google Slides’ built-in Auto-play advances every N seconds with the same interval on every slide—and it does not show a visible countdown. Presenters who need auto advance Google Slides with a timer usually want: a clock the audience can see, a custom duration per slide, and a clean flip when time expires.

Live Slides Timer solves this with the |] trigger appended to a countdown tag.

The Core Tag: Countdown + Auto-Advance

{{2:00-|]}}

2:00- — countdown from two minutes
|] — when the timer hits 00:00, simulate Next slide

Place that string in a text box, style it, then start Slideshow. When the digits reach zero, the deck advances automatically.

Add a Bell So the Room Notices

{{2:00-|@|]}}

Order of modifiers does not change the outcome: both the local bell (|@) and the next-slide action (|]) fire when the countdown completes. Useful for classroom stations and workshop rotations where people may not be watching the corner clock.

Per-Slide Timing Recipes

Lightning pitch deck: {{1:00-|@|]}} on each content slide
Teacher centers: {{12:00-|@|]}} then a directions slide for the next rotation
Silent segment then discussion: silent {{5:00-|]}} into a “share out” slide with {{3:00-|@}} (no advance—facilitator controls)

For more patterns, see timer for each slide and the classroom guide.

Auto-Advance vs Google Slides Auto-Play

Need	Slides Auto-play	Live Slides Timer `\|]`
Visible countdown	No	Yes
Different duration per slide	Hard (same interval)	Yes—different tags
Sound at expiry	No	Yes with `\|@`
Pause mid-timer	Limited	Press `Y`

Rehearsal Tips

Leave a 5–10 second buffer so you are not cut off mid-sentence.
Confirm speaker volume if you use |@.
Press Y to pause if an unexpected question arrives; R resets the tag duration.
Build tags visually with the Tag Generator (enable Auto-Advance + Bell checkboxes).

Frequently Asked Questions

Can I auto-advance more than one slide at once?

Yes. The extension supports a next-slide trigger with an optional count (for example jumping multiple slides). Start with |] for a single advance; advanced multi-jump forms are covered in the syntax docs when needed.

Does auto-advance work while screen sharing on Zoom or Meet?

Yes. The extension drives Google Slides’ own next-slide control inside the presenter view, so your shared window advances with the deck.

What if I only want a bell without changing slides?

Use {{5:00-|@}} without the |] modifier. The countdown rings and stays on the current slide until you advance manually.