EventTimerEventTimer.io

Free Hackathon Timer for Schedules and Demos

Run the whole event on time, from the hacking countdown to demo pitches and judging. Put a big clock on the main screen and share it with every team, free and easy to project.

No signup  ·  No download  ·  Works on every device

Live Demo

04:58

This is the real timer engine

Millisecond precision·Works on all devices·Fullscreen display·Instant start

Hackathon Countdown to the Deadline

Hackathons typically run somewhere between 24 and 48 hours, and the single most important number in the room is the time left until submissions close. A big, always visible countdown to the deadline keeps every team honest about scope and pushes procrastinators to commit and ship. Put EventTimer on the main projector or a lobby screen in fullscreen mode, where the giant digits are readable from across a crowded venue. Share the viewer link so hackers can keep the same clock open on their laptops while they build. When the countdown turns red in the final hour, the energy in the room takes care of itself.

  • Giant fullscreen countdown to submissions
  • Readable from across the venue
  • Share the same clock to every laptop
  • Color warnings in the final hour
05:00
5-minute default

Demo and Pitch Timer

Demos are where hackathons are won and lost, and they only work if every team gets the same slot. A common setup gives each team a two to three minute pitch inside a five to seven minute window that includes setup and a couple of judge questions. A large countdown facing the stage keeps presenters to their time so the schedule does not collapse halfway through a long lineup. Color coded warnings signal the final thirty seconds so teams learn to land their close. Reset in one keystroke between teams and keep the showcase moving.

  • Equal timed slot for every team
  • Countdown facing the presenting team
  • Color warning for the final seconds
  • One key reset between demos
05:00
5-minute default

Judging, Workshops, and Run of Show

A hackathon is more than the hack itself: an opening ceremony, sponsor talks, mentor sessions, workshops, judging, and an award ceremony all need timing too. Judging alone often takes two to three hours, and finalist showcases usually budget around seven minutes per team including setup. Build the full run of show in the Event Manager with a timer for each block, then hand the display to a stage manager who keeps the day on schedule. Switch between countdown, count up, and clock modes as each part of the event demands. One shared plan keeps organizers, volunteers, and judges pulling in the same direction.

  • Plan the full event run of show
  • A timer for every session and ceremony
  • Countdown, count up, and clock modes
  • Hand the controller to a stage manager
05:00
5-minute default

Get started

Three steps, no signup

1

Open the timer

Visit eventtimer.io. The timer loads instantly in your browser, on any device.

2

Set your duration

Type any duration or choose a preset. Switch between countdown, count-up, or clock mode.

3

Go fullscreen and start

Press F for fullscreen, Space to start. Share the link if your team needs to see it.

Common questions

Can I show a big countdown to the submission deadline?

Yes. Set the time remaining, press F for fullscreen, and put it on the main projector or a lobby screen. Share the viewer link so every team sees the same clock.

Can I time demos and pitches fairly?

Yes. Set a fixed slot, project the countdown toward the stage, and reset in one keystroke between teams so every group gets exactly the same time.

Can every team see the timer on their own device?

Yes. Create a shared timer and send the viewer link. Hackers keep the live countdown open on their laptops while they build.

Can I plan the whole schedule in advance?

Yes. Use the Event Manager to build a timer for each block, from the opening ceremony to judging and awards, then run the day from one plan.

Is it free for a whole event?

Yes. EventTimer is completely free with no signup and no limits, so organizers can use it across every room and screen at no cost.

Does it work on the venue projector or a big TV?

Yes. Open EventTimer in a browser on any device connected to the display, go fullscreen, and the digits scale to fill the screen.

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