UnisonTime

Tools

What do you need?

First time here? How it works

Meeting Planner

Schedule international meetings taking into account the working hours, meals and days off of 54 countries, and get a warning when the time clashes with your Agenda.

Agenda

Your tasks as time blocks on a calendar that shows the holidays of your country and of the countries you work with, plus the meetings you save in the planner.

Life Clock

Visualize your life expectancy with WHO data. A reminder to make the most of the time you have left.

World Clock

See the current time in several cities at once, and whether people there are working, eating or asleep.

Timezone Converter

Convert times between two timezones, with the working hours, meals and sleep of each side.

Jet Lag Calculator

Estimate adaptation time and get a day-by-day recovery schedule.

Cultural Etiquette

Working hours, punctuality and meeting customs, country by country.

Holiday Calendar

Browse public holidays and regional variations for any country — filter by type.

Calendar files

Make an .ics for an event, or download a country's public holidays as a calendar.

Time tools that take each country's habits into account

Meetings at the best possible time, in any time zone

Plan meetings and organize your day from the same data: meals, sleep, holidays and weekends across 59 countries and regions.

Plan a meeting Explore the nine tools
  • Free
  • No account
  • Nothing to install

London

You--:--

Tokyo

UTC+9--:--

Los Angeles

UTC-8--:--

Your local time next to the time in two cities far away.

  • Work
  • Breakfast
  • Lunch
  • Dinner
  • Sleep

  • 59

    Countries and regions

    Working hours, meals, sleep, weekend and public holidays for each one.

  • 9

    Tools

    All of them free, and none of them behind a sign-up.

  • 0

    Accounts needed

    Everything runs in your browser. Sign in only if you want to sync.

What makes it different

Any tool can find the hours you have in common. Few check what each person is doing at that hour.

A normal scheduler only checks that everyone is awake. It doesn't take into account that 14:30 is lunchtime in Madrid, that Friday is part of the weekend in Riyadh, or that the time it suggests falls on a national holiday in São Paulo.

UnisonTime checks all of that for 59 countries and regions, half hour by half hour, and tells you how convenient each time is for each person.

  • Meals

    Lunch is at 12:00 in Chicago, 14:30 in Madrid and 13:00 in Tokyo. A meeting that overlaps someone's lunch loses points.

  • Weekends

    Saturday and Sunday in most places — but Friday and Saturday in Saudi Arabia, Israel, Bangladesh and Egypt. A Friday morning in Riyadh is not a working slot.

  • Holidays

    National and regional public holidays for every participant, checked against their own local date rather than yours.

Already know the two countries? See the hours that work for both

Start here

Meeting Planner

Schedule international meetings taking into account the working hours, meals and days off of 54 countries, and get a warning when the time clashes with your Agenda.

100

Excellent

17:00 you · 09:00 Los Angeles

85

Good

16:00 you · 08:00 Los Angeles

65

Possible

18:00 you · 10:00 Los Angeles

The best time at each grade today between London and Los Angeles, worked out on your device just now.

Open Planner

Agenda

Your tasks as time blocks on a calendar that shows the holidays of your country and of the countries you work with, plus the meetings you save in the planner.

Open Agenda

Also included

How it works

  1. Add your attendees

    Add a country or a city for each person. Working hours, meal windows and sleep are filled in from that country's typical schedule — change any of it if your team runs differently.

  2. Find the best slot with the Harmony Score

    Every half-hour of the day gets a score out of 100, with the reason attached: who'd be asleep, who'd be at dinner, who'd be off that day. The best slots are listed first.

  3. Save it to your calendar

    Export to Google Calendar, Outlook, Teams or a standard .ics file. If the time still has to be agreed, share a poll link: people vote without creating an account.

Questions

Is it really free?
Yes. Every tool, with no usage limits, no card and no trial to expire. You don't need an account today — the calculations run in your browser. If the conditions ever change, you'll hear it in advance.
Do I need an account?
No. Every tool works fully without signing in, and your data stays in your browser. Signing in with Google or Microsoft is optional and only adds syncing across your devices.
How is this different from a time-zone converter?
A converter tells you what time it is there. UnisonTime tells you whether that time is a good one for each person, taking into account their meals, sleep, working hours, weekend and public holidays, and ranks every slot of the day accordingly.
What happens to my data?
All the calculations run in your browser; nothing needs to be sent anywhere for it to work. Saved meetings are stored in your browser unless you sign in, in which case they sync to your account. Availability polls are stored on a server so they can be shared by link, and are deleted after 30 days. To see whether the tools are useful, the site counts a few actions anonymously — how many meetings were exported today, say — without knowing who, and without any of what you typed.
Who is this for?
Distributed teams, freelancers with clients abroad, families living on different continents, and anyone who always ends up taking the early-morning call.

For anyone who lives, works or travels across time zones, so that nobody has to meet during their sleeping hours.

Plan a meetingWhat it costs