A countdown app for events, goals, and everything between

Track countdowns to the moments that matter

Chrono Countdown turns birthdays, trips, anniversaries, launches, school dates, and personal milestones into a clear timeline you can check at a glance. It is a countdown timer app for iOS, Android, and the web, built for anticipation without the clutter of a traditional calendar.

No download, no account needed to start.

Local-firstPrivate by defaultFree to start
Create Countdown screen in the updated Chrono mobile app
Updated Chrono mobile app home screen with Halloween and marathon countdowns
✓Reminder ready

From idea to live countdown in under a minute

01

Create a countdown

Pick a date and name the moment, a birthday, trip, launch, or deadline. No account needed to start.

02

Customize and track it

Add a cover image, category, and notes. Mark it recurring if it returns every year, and set a reminder so it doesn't sneak up on you.

03

Share or sync across devices

Keep it private, invite people by username, or make it public. Sign in to sync across web, iOS, and Android.

Everything an event countdown needs

A birthday countdown, a recurring holiday timer, or a shareable countdown for the whole group, Chrono adapts to the moment.

Live countdown timer

An event timer that updates every second, in the event's own timezone, so the number is always right.

Recurring events

Birthday countdowns, anniversaries, and holidays roll forward to their next occurrence automatically, every year.

Shareable countdowns

Make a countdown public and share the link, or invite specific people by username to a private one.

Local-first

Start in the browser with no account, then sync when you're ready.

Reminders

Get a push or email nudge before the date arrives.

Coming up next

Public countdowns the Chrono community is tracking.

Find a countdown to follow

10K+Downloads
4.3App store rating
164+Public countdowns

A countdown for every milestone

Put a countdown on your site

Embed any public Chrono countdown as a small, live widget with a link back to the full page.

See how embedding works →

Frequently asked questions

Is Chrono free?

Yes. Chrono is free to use on the web, iOS, and Android, with no limit on how many countdowns you can create.

Does Chrono work offline?

Countdowns you create in the web app work locally without an account, so the timer keeps running without a connection. Syncing across devices requires signing in.

Can I sync countdowns across devices?

Yes. Sign in and your countdowns sync across the web app, iOS, and Android.

Are my countdowns private by default?

Yes. New countdowns are private until you choose to share them with specific people or make them public.

Can I share a countdown with other people?

Yes. Invite people by username to a private countdown, or make it public so anyone with the link can view and track it.

Can Chrono send me reminders?

Yes. Add push or email reminders at a set time before any countdown's date.

Does Chrono support recurring events?

Yes. Mark a countdown as recurring and Chrono automatically rolls it forward to its next occurrence once the date passes.

Can I put a Chrono countdown on my own website?

Yes. Public countdowns can be embedded as a small, live widget on any website.

Start a countdown today

Use Chrono on the web, iPhone, or Android and keep the dates that matter within reach.