Tracks how long you spend on each site, with hour-by-hour history and daily limits. Data never leaves your browser.
Users
6
+1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#236K
#197K among extensions
Version
1.1.0
updated 21 Aug 2026
Users
monthly, 2 months
Latest, 15 Oct 2026:6 usersMove the mouse over the chart for any month
Ratings count
monthly, 2 months
Latest, 15 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Chrono — website time tracker
Chrono answers one question: where did today actually go?
It counts the time you spend on every website, breaks it down hour by hour,
and keeps the history so you can look back at any past day. Everything stays
on your machine - no account, no sign-up, no server, no analytics.
WHAT YOU GET
• A day strip in the popup - 24 columns, one per hour, so you can see the
shape of your day at a glance.
• Full history - pick any past date and see it broken down by hour and by site.
• Single-site view - click a site and the chart rebuilds around just that one.
• Daily limits - set a limit in hours and minutes, get a notification when it
runs out, and optionally have the page dimmed until you decide to move on.
• Time-check nudges - an optional reminder telling you how long you have sat
on one site without a break.
• CSV and JSON export - your numbers, in your hands.
COUNTING YOU CAN TRUST
Most trackers quietly inflate your numbers. Chrono does not count a tab that
is merely open:
• The Chrome window has to be in focus. Switch to another app and the clock
stops.
• After a minute with no mouse or keyboard the clock stops, and that idle
minute is rolled back rather than credited to the site.
• A tab playing audio is never treated as idle, so films and music are not
silently dropped.
• If the machine sleeps, the gap is capped at five minutes instead of turning
an overnight sleep into eight hours on a news site.
ABOUT LIMITS
A limit applies to one domain for one calendar day. When it runs out you get a
notification, the toolbar badge turns red, and the site is marked in the popup.
Repeat reminders are configurable. If you switch on page dimming, a panel
appears over the site with a Snooze button and a Close tab button — nothing is
blocked silently and no tab is ever closed for you.
Page dimming needs access to page content, so it is NOT part of the install
permissions. Chrome asks for it separately, only if you turn the feature on,
and declining leaves limits working as notifications.
PRIVACY
Chrono stores only the domain of the site and the seconds you spent there.
Never page URLs, titles, page content, form input, cookies or search queries.
Incognito tabs are skipped by default. Records older than your retention
setting (90 days out of the box) are deleted automatically. Nothing is sent
anywhere, sold or shared — there is no server to send it to.