Focus Room World Clock

What it is for

When a team, a family or a customer is spread over several time zones, two questions come up again and again: what time is it there right now, and when can we all talk? This tool answers both. You list up to twelve time zones, pick a moment (or leave it empty for now), and get each place's local date and time, weekday, UTC offset and whether daylight saving time is in force, plus a small analogue clock for each city.

The meeting planner then walks through the 24 hours of that day in the first place's time and counts, for every hour, how many places are inside their working hours (Monday to Friday, your start and end hour).

Focus Room shows the same clocks as a live strip under its big clock, for a wall screen in an office or a second monitor.

Worked example

Take Europe/London, America/Chicago and Asia/Singapore at 2027-05-20 08:00 London time. The tool reports:

• At 07:00 UTC it is 08:00 in London, 02:00 in Chicago and 15:00 in Singapore.
• London is on UTC+01:00 and Chicago on UTC−05:00, both with daylight saving time; Singapore is on UTC+08:00 without it.
• All three are on the same day, a Thursday.

The meeting planner (working hours 9:00–17:00) finds no hour in which all three places are at work — the tool warns about that — and lists 09:00, 15:00 and 16:00 London time as the best hours, each with 2 of 3 places at work. At 09:00 London it is 16:00 in Singapore, the last full working hour there; at 15:00 and 16:00 London, Chicago has started its day (09:00 and 10:00) while Singapore has gone home.

How to read the result

• Local time and Weekday are what a clock on the wall shows in that place.
• UTC offset is the difference to UTC at that moment; it changes when the place switches daylight saving time.
• Daylight saving is "yes" when the offset is above the place's standard offset of that year.
• Day shows "+1" or "−1" when the place is already on the next day or still on the previous one compared with the first zone.
• The meeting planner table has one row per hour of the first zone's day, the matching local times and the number of places at work for the whole hour.

Tips and common mistakes

• Put the place that organises the meeting first: day differences and the planner use its calendar day.
• Use full IANA names (Asia/Kolkata, America/Sao_Paulo). Abbreviations like "IST" are ambiguous and not accepted.
• Places with half-hour offsets (India, Newfoundland, parts of Australia) only count for an hour when the whole hour lies inside working hours.
• Weekends are Saturday and Sunday in the planner. For a Friday–Saturday weekend, check Friday rows yourself.
• Around the spring and autumn clock changes, look at both weeks: offsets between Europe and North America differ for a few weeks a year.

FAQ

Where do the time zones come from?

From the IANA time-zone database, through your platform's built-in time-zone support. It knows every rule change that is already decided.

Why is no hour good for everyone?

With places twelve or more hours apart there is often no overlap of a normal working day. The tool then lists the hours with the most places at work.

Can I change the working hours?

Yes, set the start and end hour; they apply to every place.

Can I keep these clocks on screen?

Yes. In Focus Room open the Display tab, choose Clock, add the cities under World clocks and press Full screen.