How are you currently handling countdown timers in Klaviyo emails?

I've been working on a solution for this and ran into an interesting problem: email clients don't behave like browsers, so creating something that looks like a real-time countdown isn't as straightforward as it seems.

I'm curious what everyone here currently uses for:

• Flash sale countdowns
• BFCM campaigns
• Product launches
• Limited-time offers

Are you using a countdown service, generating GIFs yourself, or just avoiding them because of email-client limitations?

I recently built a tool around this problem and would love feedback from people who actually use Klaviyo.