The most precise online countdown timer for work, study, workouts and productivity. Ad-free, works on every device. Start counting down in one second — CHRONOS Countdown.
A countdown timer lets you set a duration and counts down to zero. It is ideal for work, study, cooking, exercise, meditation, and productivity techniques.
A countdown timer fits any task with a clear end: exam revision blocks, cooking and baking, HIIT circuits, presentations, interviews, language drills and deep-work sprints. Set the time once and let the countdown keep the session honest.
CHRONOS counts down on a high-resolution timer instead of a ticking clock loop, so the remaining time never drifts, even across long countdowns. The display stays readable, the alert is reliable, and nothing runs in between — no ads, no pop-ups, no login.
Use a work timer to box meetings, sprints, admin batches and breaks. A fixed countdown creates a deadline effect that shortens task switching and keeps priorities visible, which is why teams use an online countdown for stand-ups, workshops and focus blocks.
For study, a countdown timer converts an open-ended session into a defined target. Alternate 25 to 50 minute countdowns with short breaks, track how many sessions you complete, and review your history to see where attention actually went.
Unlimited time invites drift. A countdown timer adds a light constraint that raises attention and reduces overthinking, and the upcoming end signal removes the need to check the clock — so you stay inside the task instead of watching the time.
Can I set any time?
Yes, the countdown timer is fully customizable.
Can I set long countdowns?
Yes, the countdown timer supports long durations and runs reliably.
Does the timer work offline?
Yes, once loaded, the countdown continues even without an internet connection.