How to make a countdown
- 1
Name your event
Type anything: “Our wedding”, “Summer break”, “Launch day”. The name shows above the timer.
- 2
Pick the date and time
Choose the day, and a time if it matters. Leave it at 00:00 to count down to the start of the day.
- 3
Go fullscreen or share
Show it on a big screen with the Fullscreen button, or copy the share link for friends, family or your team.
Countdown ideas
Life events
Weddings, due dates, birthdays, anniversaries, graduation and moving day.
Travel
Vacations, flights, cruises and the next time you'll see someone far away.
Work and school
Product launches, deadlines, exams, the last day of school and retirement.
Classrooms and events
Show a fullscreen countdown on a projector before a class, talk, party or New Year's Eve.
Holiday dates at a glance
| Holiday | 2027 | 2028 |
|---|---|---|
| Christmas | Dec 25, 2027 | Dec 25, 2028 |
| Christmas Eve | Dec 24, 2027 | Dec 24, 2028 |
| New Year's Eve | Dec 31, 2027 | Dec 31, 2028 |
| New Year's Day | Jan 1, 2027 | Jan 1, 2028 |
| Valentine's Day | Feb 14, 2027 | Feb 14, 2028 |
| St. Patrick's Day | Mar 17, 2027 | Mar 17, 2028 |
| Easter | Mar 28, 2027 | Apr 16, 2028 |
| Mother's Day (US) | May 9, 2027 | May 14, 2028 |
| Memorial Day | May 31, 2027 | May 29, 2028 |
| Father's Day | Jun 20, 2027 | Jun 18, 2028 |
| Canada Day | Jul 1, 2027 | Jul 1, 2028 |
| 4th of July | Jul 4, 2027 | Jul 4, 2028 |
| Labor Day | Sep 6, 2027 | Sep 4, 2028 |
| Halloween | Oct 31, 2027 | Oct 31, 2028 |
| Thanksgiving | Nov 25, 2027 | Nov 23, 2028 |
| Black Friday | Nov 26, 2027 | Nov 24, 2028 |
| Cyber Monday | Nov 29, 2027 | Nov 27, 2028 |
| Boxing Day | Dec 26, 2027 | Dec 26, 2028 |
| Australia Day | Jan 26, 2027 | Jan 26, 2028 |
How the countdown is calculated
The timer takes your target date and time, reads the current time from your device once a second, and shows the difference split into days, hours, minutes and seconds. Because it recalculates from the real clock every tick instead of subtracting one second at a time, it never drifts, even if your phone goes to sleep or the tab sits in the background for hours.
Time left: 4 days, 5 hours, 30 minutes, 0 seconds
“Sleeps”: 5, because there are five nights between now and Christmas morning
The “sleeps” number rounds up to whole days, which is how kids count down to birthdays and holidays. It equals the number of nights you'll go to bed before the big day.
Counting down to an event in another time zone
The countdown runs on the clock of whoever is viewing it. If you set 8:00 PM, a friend in another time zone sees a countdown to 8:00 PM in their zone, not yours. That's perfect for things everyone experiences locally, like New Year's or a birthday. For a single global moment, like a live stream, product drop or rocket launch, convert the time to your own zone first and share the countdown with a note saying which zone it's in.
| 8:00 PM in New York is… | Local time (standard time) |
|---|---|
| Los Angeles | 5:00 PM |
| Chicago | 7:00 PM |
| London | 1:00 AM next day |
| Sydney | 12:00 PM next day (in December) |
Countdown, timer or stopwatch?
A countdown counts toward a specific date and time, like a wedding or New Year's. A timer counts down a set length of time from when you press start, like 25 minutes for a study session. A stopwatch counts up from zero. This tool is a date countdown, but once the date passes it switches to counting up, so it also works as a “time since” clock for anniversaries.
Using a countdown on a big screen
Fullscreen mode turns the countdown into a clean display with large numbers, ideal for a classroom projector, a TV at a party, a conference stage or an office screen before a launch. Press the Fullscreen button, then Esc to exit. It uses your current light or dark theme, so choose dark mode for a darker room. Before the event, check that your computer won't sleep, turn off notifications, and open the page a few minutes early.
Planning timeline for big events
A countdown is most useful when you pair it with a plan. These are common lead times for popular events. Set your countdown to the event date, then use the Date Calculator to subtract each lead time and find your deadlines.
| Event | Task | Typical lead time |
|---|---|---|
| Wedding | Send save-the-dates | 6 to 8 months before |
| Wedding | Send invitations | 6 to 8 weeks before |
| International trip | Check passport validity | At least 6 months before |
| Holiday flights | Book for the best fares | 2 to 3 months before |
| Christmas | Order gifts for standard delivery | 2 to 3 weeks before |
| Birthday party | Send invites | 2 to 3 weeks before |
| Exams | Start a revision plan | 6 to 8 weeks before |
Counting down with kids
Young children find it hard to picture “three weeks”. Counting in sleeps helps, because it matches something they do every day. Other ideas: a paper chain with one link to tear off each morning, an advent-style calendar with a small surprise per day, or crossing days off a printed calendar. You can also leave this page open in fullscreen on a tablet so they can watch the seconds tick down on the big day.
Countdown ideas by audience
Teachers use countdowns to the end of term, exam day, or the 100th day of school, shown fullscreen on the classroom board. Couples count down to a wedding, a move-in date or the end of a long-distance stretch, and share the link so both see the same timer. Teams put a launch or deadline countdown on an office screen or in a team chat. Event organizers show one before a talk or show starts, so the audience knows exactly when things begin. Families count down to holidays, birthdays and the first day of a trip.
Whatever the occasion, give the countdown a clear name, double-check the date and time, and share the link early so everyone can follow along.
Why countdowns help
A visible deadline makes time concrete. Instead of a vague “in a few weeks”, you see exactly how many days are left, which makes it easier to break a big task into steps and spot when you're falling behind. Psychologists call the tendency to speed up as a goal gets closer the goal-gradient effect, and a countdown keeps that finish line in view. For happy events, the countdown is part of the fun: anticipation is a big part of looking forward to a trip or celebration.
Tips for a great countdown
Keep the event name short so it reads well on a phone. For an event in another time zone, set the time as it will be where you are, since the timer always runs on your device's clock. If you're showing it on a big screen, test fullscreen before the event and turn off your screen saver.