Add a countdown timer to Klaviyo emails

Live countdowns in your Klaviyo campaigns and flows — one image URL, no JavaScript, no plugins.

Klaviyo doesn't ship a built-in live countdown timer for emails. UrgencyKit adds one as a single image URL you drop into a Klaviyo block — in both one-off campaigns and automated flows. Every time a recipient opens the email, the image re-renders to show the exact time remaining, which is especially powerful in abandoned-cart and time-limited-offer flows.

How to add a countdown timer to Klaviyo

1. Create a campaign in UrgencyKit and set your deadline and timezone.
2. Style it to match your brand — background, fonts, and colors.
3. Copy the embed from the editor.
4. In the Klaviyo editor, add an image block (or a text / HTML block for full control) and use the UrgencyKit image URL.
5. Send a preview to confirm the countdown shows the right time.

Personalize the deadline in a flow

For abandoned-cart and evergreen timers or per-recipient offers, the embed includes a ?end= value that overrides the default deadline. Swap it for a Klaviyo profile or event property holding each recipient's end time, and every person in the flow sees their own countdown:

The ?end= value accepts a Unix timestamp or ISO 8601 date — both formats Klaviyo event and profile properties commonly hold. Flow-triggered properties (a checkout event's timestamp, an offer-expiry date your integration writes) work as-is.

Will it render in my recipients' inboxes?

Klaviyo audiences are overwhelmingly consumer inboxes — Gmail and Apple Mail above all — and both render the countdown image on every open. Because it's a plain <img>, there's nothing for a client to strip: no scripts, no custom code blocks. See the full email client support details, including how animated timers behave in Outlook.

Frequently asked questions

Does Klaviyo have a countdown timer?

Not a built-in live one for emails. UrgencyKit adds it as a single image URL you paste into a Klaviyo block, in both campaigns and flows, and the image renders the current countdown on every open.

How do I add a countdown timer to a Klaviyo email?

Create a campaign in UrgencyKit, copy the image embed, then add an image or text/HTML block in the Klaviyo editor pointing at the UrgencyKit image URL.

Can a flow show each recipient their own deadline?

Yes. Replace the ?end= value with a Klaviyo profile or event property containing each recipient's deadline, and every recipient in the flow gets a personalized countdown.

More countdown timer guides

• Free countdown timers for email
• Add a countdown timer to Mailchimp emails
• Add a countdown timer to HubSpot emails
• Countdown timers that work in Outlook
• Create countdown timers programmatically with the REST API