Free Time Tools

Free Time Tools

Use these free online time tools to measure elapsed time, run a countdown, compare time zones, and calculate your age. All calculations run in your browser.

⏱️ Stopwatch

00:00:00.00

Ready to start

⏳ Countdown Timer

00:00:00

Hours

Minutes

Seconds

Set a duration and press Start.

🌍 Time Zone Converter

Convert a date and time between time zones using your browser's time zone database.

Date and timeFrom country / time zoneTo country / time zone

Converted time will appear here.

🎂 Age Calculator

Date of birthCalculate age on (optional)

Your age will appear here.

About Free Time Tools

Free Time Tools brings several practical time utilities together on one page. Use the stopwatch to measure elapsed time for workouts, study sessions, cooking, experiments, games, or work tasks. The countdown timer helps you set a duration and keep track of how much time remains. The time zone converter helps you coordinate meetings and events across different parts of the world, while the age calculator works out the time between a date of birth and a selected date.

How to Use the Stopwatch

Press Start to begin measuring elapsed time. Select Lap to record a split without stopping the stopwatch. Choose Reset to return the display to zero. The stopwatch uses elapsed time rather than simply counting display updates, helping it remain accurate if the browser briefly pauses rendering.

How to Use the Countdown Timer

Enter hours, minutes, and seconds, then press Start. Pause the timer whenever you need to interrupt the countdown, or use Reset to return the timer to 00:00:00 and clear the entered duration. Keep this page open while the timer runs. Your browser may limit background activity when a tab is inactive, so use a dedicated alarm device when missing an alert would have important consequences.

How to Convert Time Zones

Select the original date and time, choose the source time zone and destination time zone, then press Convert Time. The result includes the date as well as the time, which is important when converting across midnight. Daylight-saving rules can change the offset during the year; always double-check critical travel, event, or business schedules with the organizer.

How to Calculate Age

Enter your date of birth. You can leave the second date empty to calculate age as of today, or select a different date to calculate age at that point in time. The result is shown in years, months, and days. Make sure the birth date is entered correctly, and select a calculation date that is not earlier than the birth date.

Frequently Asked Questions

Are these time tools free?
Yes. The stopwatch, countdown timer, time zone converter, and age calculator are available to use without a subscription.

Are my dates sent to a server?
The calculations on this page are performed in your browser. This page's tools do not need to upload your date entries to calculate results.

Does the time zone converter account for daylight saving?
It uses the time zone rules available in your browser. For important appointments, verify the final time with a trusted calendar or event organizer.

Can I use these tools on a phone?
Yes. The layout adapts to smaller screens, and the inputs and buttons can be used on mobile devices.