Does the timer work if I switch tabs?

Yes. Modern browsers allow the timer logic to continue running in the background. However, for the alarm sound to play reliably, it's best to keep the tab open or in a separate window.

Is there an alarm sound?

Yes. When the countdown reaches zero, an audio alert will play to notify you. Make sure your device volume is turned up.

Can I set a timer for more than 24 hours?

Yes. You can input any number of hours. For very long durations (like days or weeks), we recommend using our 'Date Difference' or specific event countdown tools.

Yes. The timer synchronizes with your system clock to ensure seconds are counted accurately, preventing drift over long periods.

No. Once the page is loaded, the timer runs entirely offline using your browser's JavaScript engine. It consumes zero data while running.

Online Countdown Timer

Set a timer for seconds, minutes, or hours. Perfect for workouts, cooking, studying, and productivity.

Target Date & Time

Master Your Time

A countdown timer is one of the simplest yet most effective tools for productivity. By creating a sense of urgency and defining a clear endpoint, it helps you focus on the task at hand.

Whether you're trying to focus on work, perfect a recipe, or squeeze in a quick workout, a reliable timer is your best friend.

Popular Uses for Timers

🍅 Pomodoro Technique

Set a timer for 25 minutes of deep work, followed by a 5-minute break. This method is proven to prevent burnout and boost focus.

🍳 Cooking & Baking

Perfect soft-boiled eggs (6 minutes), al dente pasta (9 minutes), or steeping tea (3 minutes). Precision is the secret to great food.

🏋️ HIIT Workouts

High-Intensity Interval Training relies on strict timing. 45 seconds of work, 15 seconds of rest. Use our timer to keep your pace.

🦷 Health & Hygiene

Dentists recommend brushing for 2 minutes. Kids (and adults!) often rush it. A timer ensures you're taking care of your health properly.

The Psychology of Countdowns

Seeing time tick away creates a psychological effect known as "temporal motivation." As the deadline approaches, our focus increases.

Parkinson's Law: "Work expands to fill the time available for its completion." By setting a strict timer, you limit the time available, forcing yourself to be more efficient.
Flow State: Knowing that a timer will remind you when to stop allows you to fully immerse yourself in the task without constantly checking the clock.

Features

Large Display: Easy to read from across the room.
Custom Inputs: Set exact hours, minutes, and seconds.
Audio Alert: A clear beep sound when time is up.
Browser-Based: No app install required. Works on any device with a web browser.

Frequently Asked Questions

Does the timer work in the background? ▼

Yes, the countdown logic continues even if you switch to another tab. However, browsers often restrict audio from playing in background tabs to save battery. For the best experience, keep the tab active or pull it into its own window.

Can I set multiple timers? ▼

Currently, this page supports a single timer. You can open multiple tabs of this page to run several timers simultaneously (e.g., one for the pasta, one for the sauce).

What happens when it reaches zero? ▼

The timer will stop at 00:00:00 and play an audible alarm sound. The display may also flash or change color to visually alert you.

Is it precise enough for science experiments? ▼

For general purposes, yes. It is accurate to within a few milliseconds. However, for high-precision scientific measurements requiring microsecond accuracy, specialized hardware timers are recommended over browser-based software.