Kit countdown timer for broadcasts and sequences

Kit has a native Countdown Timer block in its content block menu, and for a single launch it is a reasonable choice. Its help center describes one fixed end date in your account time zone, three styles, your colors and an expiry message of up to 60 characters. If that covers your launch, use it.

Choose flashtimer when the same email reaches people on different days, or when you want more than a fixed date. Evergreen timers start at each subscriber's first open, recurring timers reset on a clock rule, and dynamic timers count down to a date stored on the subscriber. After the deadline you can show your own image, not just text. You also get every layout, your uploaded fonts, labels in your readers' languages, view analytics and the same timer in every other tool you use.

Sequences are where an evergreen timer matters most in Kit. A sequence sends email 3 to one subscriber today and to another next month, so a fixed date is wrong for nearly everyone. An evergreen timer with ?vid={{ subscriber.email_address }} gives each subscriber the same window, say 72 hours, from the moment they first open.

Kit replaces the Liquid tag with the subscriber's address at send time, and flashtimer hashes it before storing. Pair it with a welcome email discount countdown at the end of a nurture sequence, or a cart-close reminder for a course. Read more on the evergreen countdown timer email page; evergreen is on the Basic plan and up.

For a cohort launch or a live class, a fixed timer in your broadcast keeps everyone pointed at the same doors-close moment, and the product launch countdown email guide covers the sequence around it. For a live session, the webinar countdown timer email page shows how to time the reminders.

If each subscriber has their own date in a Kit custom field, such as a trial end or a renewal, a personalized countdown timer (Pro and up) counts down to that date, read from the email itself. And if you sell something weekly, a recurring timer always points at the next real cutoff.

The timer works in Gmail, Apple Mail, Yahoo, and Outlook on the web, Mac and mobile. Gmail's image proxy is handled with no-cache headers, so a reopen shows the current time. Apple Mail Privacy Protection pre-fetches images. By default those loads get the live countdown as it stood then; on Pro and up, Apple Mail options can show them a message, your fallback image or nothing instead, so cached opens never show a stale time.

Classic Outlook for Windows (2007–2019, and newer versions with Windows animations turned off) shows only the first frame of any animated GIF. Readers there see the right time left as of their open, but it won't tick, so always state the deadline in words too. After the deadline, flashtimer shows your expiry message or, from Basic up, a fallback image such as "Doors are closed, join the waitlist".

Most issues come down to where the timer was pasted or a duplicated email. Check these first.

• The timer doesn't move: the GIF was uploaded to Kit's media gallery, which stores a saved copy that never updates. Use the HTML Block snippet so it loads live from flashtimer.
• Every subscriber sees the same evergreen countdown: the Liquid tag didn't resolve. Re-copy the Kit embed so {{ subscriber.email_address }} is spelled exactly.
• Your edit changed two emails: that's Kit's native block, where a duplicated email shares the original's timer. flashtimer timers are separate, so make a new timer for each offer.