Free Time Tools
Precision stopwatches, timezone offsets, and epoch utilities • 2 browser-native utilities
Business Days Calculator
Add or subtract business days from a given date, skipping weekends automatically.
Week Number Finder
Find the ISO 8601 week number, week start and end dates, and year progression for any date.
Our free time tools are 6 utilities for measuring, counting, and comparing time: precision clocks, stopwatches, timers, and a world clock. They are perfect for workouts, cooking, presentations, and coordinating across time zones.
Everything runs in your browser with millisecond precision and no installation. Open a timer, and it just works.
Free Time Tools for Every Need
Precision clocks include the Clock with Milliseconds and the Clock with Nanoseconds for timing-sensitive work and curiosity alike. The Online Stopwatch, Countdown Timer, and Count Up Timer cover workouts, cooking, study sessions, and presentations.
The World Time Clock makes scheduling across time zones painless: see the current time in major cities side by side before you send that meeting invite.
Why Use Online Time Tools?
Your phone has a timer, but switching apps breaks focus. A browser tab with a big, readable timer keeps the clock visible while you work, cook, or present.
Millisecond and nanosecond clocks are genuinely fun and occasionally useful for developers measuring rough performance or anyone curious about how finely time can be sliced.
How to Use the Free Time Tools
Open the tool you need. Clocks start automatically. For timers, set your duration and press start; lap and reset controls are right there. The world clock needs no setup at all.
Tips for Better Time Management
Timebox with the countdown timer. Set 25 minutes for focused work and 5 for a break. Visible countdowns create gentle urgency that to-do lists cannot.
Use the world clock before scheduling. A ten-second check prevents the classic mistake of booking a meeting at 3 AM for half the attendees.
Keep a stopwatch tab open during billable work. Starting it when you begin a task gives you honest time tracking without any app or subscription.
Frequently Asked Questions
Are these time tools free?
Yes, all 6 tools are free with no sign-up.
How accurate are the timers?
They use your device clock with millisecond display precision, accurate for everyday timing needs like workouts, cooking, and presentations.
Do the timers work if I switch tabs?
Yes. They keep running in the background while the page is open.
Is there a world clock?
Yes. The World Time Clock shows current times across major cities for easy scheduling.
What is the best free online stopwatch?
The Online Stopwatch here runs with millisecond precision right in your browser, no install or account needed.
Can I time presentations?
Yes. The Countdown Timer is perfect for talks and pitches: set your slot length and keep the tab visible while you present.
Can I use the timer for the Pomodoro technique?
Absolutely. Set the Countdown Timer to 25 minutes for work sprints and 5 minutes for breaks. Repeat the cycle four times, then take a longer break. The visible countdown keeps you honest about staying on task, and the tab keeps running reliably even if you switch to other work in between sessions.
Does the stopwatch show milliseconds?
Yes. The Online Stopwatch displays milliseconds, and there are dedicated clocks showing milliseconds and even nanoseconds.