How to Build Dynamic Countdown Timers in Sparkforge Emails

The Sparkforge dynamic countdown timer personalizes the countdown for each contact based on when they receive or open your email. Each recipient sees a timer that starts at their interaction, not at a single shared deadline.

What a dynamic timer does

A dynamic timer adjusts per recipient. A static timer shows the same countdown to everyone. With a dynamic timer, the countdown starts the moment a contact opens or receives the email.

Examples

Duration-only (no end time)

Duration: 2 hours. Trigger: Email Opened.

• Contact A opens at 2 PM → timer runs 2 PM to 4 PM.
• Contact B opens at 5 PM → timer runs 5 PM to 7 PM.

Duration with a fixed end time

Duration: 2 hours. End time: 12 AM. Trigger: Email Opened.

• Contact A opens at 2 PM → timer runs 2 PM to 12 AM.
• Contact B opens at 5 PM → timer runs 5 PM to 12 AM.

Common use cases

Birthday offer (Email Sent trigger)

Send a birthday discount valid until midnight. Email sent at 11:59 PM the prior day, 24-hour duration, ends at 12:00 AM. Each recipient gets a full day to redeem.

Sale window (Email Opened trigger)

Offer at least 2 hours after open. Duration 2 hours minimum, ends at 11 PM the same day. Contact A opens at 6 PM → ends 11 PM. Contact B opens at 10 PM → ends 11 PM the next day.

Why use "Ends at Time"

If a contact opens at 11:07 PM with a 2-hour duration, the timer would normally end at 1:07 AM — which feels artificial. Setting an end time of 12 AM keeps the countdown realistic across all recipients.

How to build one

1. Go to Timers and click Create New Timer.
2. Choose Dynamic Timer.
3. Set the duration (for example, 2 hours) and an optional end time (for example, 12 PM). Watch the helper text to confirm the behavior.
4. Customize the design to match your email style.
5. Define the active and expired link destinations.
6. Save the timer and use it in emails or funnels, or copy the embed code for custom templates.