How to set up a countdown timer popup with Nudgesmart

TL;DR

Pick a countdown template (or start from scratch and add a countdown element to your popup). Choose a timer type: Fixed End Date for a real deadline everyone shares, or Evergreen (per visitor) for a short personal countdown such as 15 minutes, 1 hour or 24 hours. Then choose a display format and the text shoppers see when time runs out. Use timers for actual deadlines — Black Friday, product launches, restocks — not for fake urgency that resets every visit.

Real-time vs evergreen timers (which to use)

There are two patterns merchants reach for when adding urgency:

• Real timers — tied to a specific deadline. Every shopper sees the same end time because the deadline is global. "Sale ends Sunday at midnight" means the same thing whether you visit Friday or Saturday.
• Evergreen timers — reset per visitor. Each shopper sees their own X-minute countdown starting from their first visit. "Get 10% off — this offer disappears in 5 minutes" applies just to them.

Nudgesmart's countdown supports both. Pick Fixed End Date when there is a real deadline: every shopper counts down to the same moment, which is the most credible format. Pick Evergreen (per visitor) for an ongoing offer: each shopper gets their own countdown from the first time they see it.

Step 1 · Choose the timer type and set the time

Countdown settings showing Timer Type, the 15 min / 1 hour / 24 hours choices for evergreen timers, and the End Date & Time picker for fixed timers

Screenshot coming soon

Fixed End Date. Set End Date & Time to the exact moment your sale or launch ends. It's read in your store's time zone, so every shopper counts down to the same moment wherever they are.

• Give yourself enough runway. 24 to 72 hour windows tend to work better than a two-hour rush.
• Don't set the deadline more than two weeks out. Long timers feel less urgent and shoppers tune them out.
• Check the date before you save. If the end date has already passed, Nudgesmart warns you before saving, because shoppers would only see the finished timer.

Evergreen (per visitor). Under Each visitor gets, pick 15 min, 1 hour or 24 hours. For any other length, open Custom and type it in seconds (for example 1800 for 30 minutes). Each shopper's countdown starts the first time they see the popup and keeps running if they move to another page.

There's no "ends at midnight" option. For a sale that ends at midnight, use Fixed End Date and set midnight as the end time.

Step 2 · Pick a display format

• Days, hours, minutes, seconds: best for multi-day events (Black Friday weekend, week-long sales, product launches).
• Hours, minutes, seconds: best for same-day events (a 24-hour flash sale).
• Minutes and seconds: best for short urgency (a 15-minute welcome offer).

Match the format to the length. A days-and-hours timer that reads "0:0:14:32" looks awkward, so use minutes and seconds when you're under an hour.

Step 3 · Style the timer

Style guidelines that consistently work:

• Use high-contrast digits (white on dark, or your brand color on white). Low-contrast timers fade into the page.
• Pair the timer with a clear headline ("Sale ends in:") and a CTA button below. Without context, a bare timer is just numbers.
• Keep the digits large enough to read at a glance — small timers feel decorative, not urgent.

Step 4 · Decide what happens at zero

The cleanest pattern for a fixed deadline is to schedule the campaign to end at the same moment, so the popup disappears alongside the timer. See Show a popup only on holidays or date ranges.

Step 5 · Mobile sizing

The visual editor's device toggle lets you switch between desktop and mobile views. If the timer's digits look cramped on mobile, reduce the font size for the mobile breakpoint. For more on testing on real devices, see Preview and test a popup before publishing.

Common pitfalls

• Shoppers see the expired text straight away. The fixed end date is in the past. Nudgesmart warns you about this before you save. Pick a new date, or switch to Evergreen (per visitor).
• Every shopper sees a different deadline. The timer is set to Evergreen (per visitor). Switch to Fixed End Date for one shared deadline.
• The deadline came and went but the popup is still live. Pause the campaign, or schedule it to end at the deadline. A popup that only says the offer has ended damages trust faster than no popup.

Frequently asked questions

Can I run multiple countdown campaigns at once?

Yes — but make sure each is targeted to a different deadline or audience, and don't stack two countdowns on the same page. Two timers competing for attention dilutes both.

What time zone does the countdown use?

A fixed End Date & Time is read in your store's time zone (shown under the field). Every shopper counts down to that same moment, so a shopper in New York and one in Los Angeles see the same time left.

Should I run a countdown timer alongside an exit-intent popup?

Generally no. Two interruption-style campaigns on the same page race each other and the same shopper gets two interruptions in sequence. Pick one campaign per page slot. If you want both effects, combine them in a single campaign — a popup with both the timer and the exit-intent trigger.

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