1. Set the end Datetime of your countdown

Create a countdown with appropriate end Datetime with the proper timezone.

Countdown Builder App

2. Design your countdown

Now style the countdown according to your needs

Countdown Builder App Full

3. Add the countdown to your email

Now the final part, after all is done you can add the countdown to your email. For this, you can copy only the image URL or full HTML code from the countdown builder.

Countdown Builder App Code