Timers & Clocks
Free online timer and clock tools. Countdown timers, stopwatch, Pomodoro, alarm, world clock, date calculators, chess clock, and more.
19 tools
Interval Timer
Free online HIIT interval timer with customizable work/rest rounds. Perfect for tabata, circuit training, and workout intervals.
Pomodoro Timer
Free online Pomodoro timer. 25-minute focus sessions with 5-minute breaks. Boost productivity with the proven Pomodoro technique.
Speed Reading Timer
Paste text and get an estimated reading time at your words-per-minute. Start a countdown timer to challenge yourself.
Typing Speed Test
Test your typing speed and accuracy in 30 seconds to 5 minutes. Live WPM, error highlighting, and instant results. Free, no signup.
Countdown Timer
Free online countdown timer. Set hours, minutes and seconds — plays an alarm when time runs out. No download, no signup.
Stopwatch
Free online stopwatch with millisecond precision and lap times. Start, pause, lap, and reset — works on desktop and mobile.
Alarm Clock
Set an online alarm clock for any time. Plays an audio alert in your browser when the time arrives — no download, no app needed.
Age Calculator
Calculate exact age in years, months, and days from a birthdate. Also shows total days, weeks, and next birthday.
World Clock
Live world clock showing current time in 20+ major cities. New York, London, Tokyo, Sydney and more.
Time Zone Converter
Convert time between any two time zones instantly. Shows conversion for 20+ world cities.
Date Difference
Calculate the difference between two dates in days, weeks, months, and years. Find how many days until or since any date.
Time Calculator
Add or subtract time durations. Calculate hours, minutes, and seconds for project tracking and scheduling.
Hours Calculator
Calculate hours worked between two times. Supports breaks and hourly pay rate for payroll calculations.
Unix Timestamp Converter
Convert Unix epoch time to a readable date and time, or the reverse, with a live-ticking current timestamp. Supports seconds and milliseconds.
Countdown to Date
Create a live countdown to any future date — birthdays, holidays, events, or deadlines. Shows days, hours, minutes, and seconds.
Study Timer
Configurable study timer with custom study and break intervals. Improve focus with timed sessions. Free and online.
Meeting Time Planner
Plan meetings across multiple time zones. Enter a time in one city and instantly see the equivalent time in up to 12 zones.
Working Days Calculator
Count business days between two dates, excluding weekends and holidays. Or add working days to a date. Custom weekends supported. Free.
Sleep Calculator
Work out when to sleep or wake up using 90-minute sleep cycles. Enter your alarm time and get the bedtimes that avoid waking mid-cycle. Free sleep cycle calculator.