Perfect Clock
Your calendar, in every time zone you need
Perfect Clock shows your calendar events on world clock timelines of your cities. Every meeting lines up with the local time in all your cities, so you see your whole schedule at a glance, without time zone math.
- Free
- No account
- No ads
- Data stays in your browser
One morning in Los Angeles is evening in Madrid and past midnight in Seoul. Each event sits on all three timelines at once.
How it works
Up and running in a minute
Use it right here in the browser, or install the Chrome extension to keep it in the side panel.
Open Perfect Clock
Open the web app, or add the extension and click its icon to open the side panel.
Add your cities
Pick from capitals and major cities, or search for any place in the world.
Connect your calendar
Connect Google Calendar in Settings. Access is read-only.
See your day everywhere
Your events appear on the timelines of all your cities, lined up by local time.
Features
Ten reasons to choose Perfect Clock
Built for people whose day is spread over several time zones.
Calendar in every time zone
Your calendar events and schedule shown in every time zone you need.
Local time at a glance
See what local time each meeting falls on in all your cities.
Your working hours
Set working hours for each city and see them highlighted, so meetings outside someone's workday stand out.
Event notifications
A browser notification the moment an event starts.
Timelines side by side
All your cities lined up together. Drag to scrub through the day.
Chrome side panel
The extension sits next to your email, docs or video call.
Full-width view
Open it in its own tab when you want more room.
Keyboard shortcuts
Jump by day, by week or straight to the next event.
Your formats
12h or 24h time and six date formats.
Private by design
No account and no ads. Your data is stored in your own browser.
Your calendar across time zones
Your schedule and your cities' clocks, in one picture.
- Connect Google Calendar in one click and see your events laid out on the timelines of your cities.
- Every event lines up with the clocks of all your cities: a 10 AM call in New York is instantly visible as 3 PM in London.
- Jump between events with the [ and ] keys and get a notification when the next one starts.
Schedule meetings with remote teams
Find the hour that works for everyone.
- Working with a distributed team or clients abroad? Add their cities and drag the timelines to find a time that suits everyone.
- Set working hours for each city: they are highlighted on its timeline, so you see where the overlap is and stop waking people up with late-night calls.
- Choose a home city, and all event times are shown relative to it.
In the browser or in Chrome's side panel
The same app, wherever you prefer to keep it.
- The web app works right here at perfectclock.cc, with nothing to install.
- The Chrome extension keeps the side panel open while you browse, so your schedule and time zones are always one glance away.
- Need a bigger view? Open Perfect Clock from the side panel in its own full-width tab.
Fast navigation
Keyboard shortcuts
Move through your schedule without touching the mouse.
Who it's for
For anyone whose day crosses time zones
Remote teams
Remote workers and distributed teams managing a schedule across time zones.
Freelancers
Working with clients in other countries without missing their working hours.
Managers & recruiters
Booking calls and interviews with people all over the world.
Travelers & digital nomads
Keeping their schedule in sync with home time wherever they are.
Traders
See NYSE, NASDAQ, Shanghai & Tokyo stock exchange hours in your time zones.
Sports fans
Following matches, races and tournaments on the other side of the world. See the F1 schedule with Polymarket markets in your time zones.
Mixed events
Following events that happen anywhere in the world, next to your own schedule. See the upcoming rocket launch schedule in your time zones.
And anyone with friends and family in different time zones.
FAQ
Frequently asked questions
Is Perfect Clock free?
Yes. Add up to 3 cities, connect your calendar and get event notifications, all for free.
Which calendars are supported?
Google Calendar today. Support for more calendar sources is in the works.
Which cities can I add?
Pick from a curated list of capitals and major cities, or search for any place in the world.
Does it handle daylight saving time and time zone changes?
Yes. Time zones and DST changes are taken into account automatically.
What does Perfect Clock do with my Google Calendar?
It gets read-only access to your primary calendar, and only after you click "Connect Google Calendar". Events go straight from Google to your browser. There is no Perfect Clock server in between.
Is my data private?
Yes. Your cities, settings and events are stored locally in your browser. No account is needed. See the privacy policy for details.
When do notifications arrive?
When an event starts, while the timeline is showing the current time.
See your whole day in every time zone
Free, no account, and it takes a minute to set up.