Browser extension for Chrome, Edge & Firefox
Clock puts four time tools in one small popup, and all four are free to use. Premium adds unlimited cities, unlimited alarms, and saved timer presets. Your clocks and timers stay on this device.
Tap the tabs to preview each tool · shown with Premium
Features
Four focused tools, one click from any tab.
Add and remove cities such as New York, London, Mumbai, Tokyo, and Sydney. Each card shows the local time, date, and time-zone abbreviation using your system clock. One city is free. Premium adds as many as you like.
Set a time and an optional name, then turn the alarm on or off. When it rings, the web page blurs and shows the name, time, Snooze, and Stop. Snooze waits 5 minutes. Two alarms are free. Premium adds as many as you like.
Counts up to show how much time has passed. Start, pause, resume, reset, and record laps with centiseconds. Elapsed time stays correct if you close the popup and open it again.
Counts down to show how much time is left. Enter hours, minutes, and seconds, or tap a 1, 5, 10, 15, or 30 minute preset, then start, pause, resume, or reset. At zero, the page shows 00:00 in red, Close, and “Time's up!” for 4 seconds. Premium saves your own presets with names.
Clock is for anyone who checks another city’s time, needs a quick countdown, or times a task without leaving the browser. It works in Chrome and other Chromium browsers such as Edge, version 116 or newer, and in Firefox 140 or newer on computers.
All four tools work as soon as you open Clock. Free includes the Stopwatch, the Timer with one-tap presets, 1 World Clock city, and 2 alarms. Premium adds unlimited cities, unlimited alarms, and your own saved timer presets. You can buy premium on a secure checkout page. Clock does not store your card number. If Premium ends, your saved cities, alarms, and presets are kept.
Compare plans →Upgrade
Choose Upgrade inside Clock: click the Free badge, or the prompt shown when you reach a free limit.
Complete payment on the secure checkout page.
Return to Clock. Premium stays active on that browser.
FAQ
Clock is a browser popup with a world clock, alarms, a stopwatch, and a countdown timer.
The stopwatch counts up and shows how much time has passed. The timer counts down from the hours, minutes, and seconds you set and shows how much time is left.
All four tools are free to use: the Stopwatch, the Timer with one-tap presets, World Clock with 1 city, and 2 alarms. Premium adds unlimited cities, unlimited alarms, and your own saved timer presets.
Premium is $12 a year, which works out to $1 a month. Lifetime is $45 once, with no recurring payments. See pricing for both plans.
Use Upgrade in Clock, then pay on the secure checkout page. Clock does not keep your card number. Unlimited cities, unlimited alarms, and saved timer presets unlock after payment.
No. Premium stays with your license key, which was emailed to you after you paid. If Clock shows Free after you reinstall, switch browsers, or move to a new computer, click the Free badge, choose Already purchased? Restore Premium, and enter the key. One key works in 2 browsers at a time. Enter it in a third, and Premium moves there from the first browser you entered it in. Cities and alarms are saved in the browser itself, so a fresh install starts without them. Lost the email? Write to developerchromextension@gmail.com.
Clock works in Google Chrome and other Chromium browsers such as Microsoft Edge, version 116 or newer, and in Mozilla Firefox 140 or newer on computers. Install it from the Chrome Web Store or from Firefox Add-ons. A Premium license works in 2 browsers at a time, so you can use it in both.
No. Those details stay in the browser’s extension storage on your computer. Read the privacy policy for the full list.
The current web page blurs. A card shows the alarm name, the time, Snooze, and Stop. Snooze rings again in 5 minutes. Stop ends this ring and keeps the alarm for the next day.
The page blurs and shows 00:00 in red, a Close button, and “Time's up!” with a red clock icon. The screen closes after 4 seconds, or sooner if you press Close.
Add unlimited cities, unlimited alarms, and saved timer presets whenever you’re ready.
