How to find your team's overlap
The math is simple but error-prone by hand: take each person's working hours in their own local time, translate them to one shared reference (UTC works well), then find where all the ranges intersect. The calculator does it live and re-checks daylight saving for today's date. Add or remove people and the green overlap band updates instantly.
When the overlap shrinks to an hour or disappears, that's a signal — not a failure. It means the team should shift weight from synchronous meetings toward async communication: written updates, recorded videos, and clear handoffs between time zones. The best distributed teams treat the overlap as precious and protect it for the few things that genuinely need everyone live.
Frequently asked questions
How do I calculate overlapping working hours across time zones?
List each team member's standard working hours (e.g. 9:00–17:00) in their own local time, convert them all to a single reference zone (usually UTC), and find the window where every person's range overlaps. The calculator above does this automatically: add each city and it shades the hours when everyone is online.
What is a good meeting time for a global team?
Pick a time inside the overlap of everyone's working hours. For a US-Europe team, early-US-morning / late-Europe-afternoon (around 15:00–17:00 UTC) usually works. For teams spanning more than ~8 time zones there may be no shared working window, in which case rotate meeting times so the same people aren't always inconvenienced, and lean on async updates.
How much working-hours overlap do distributed teams usually have?
It depends on spread. US-East-Coast + Western-Europe share about 3 hours. US-West-Coast + Western-Europe share roughly 1 hour. San Francisco + Bangalore share almost none. Once a team spans the Pacific and Europe and Asia, the realistic shared window often drops to zero, which is why fully-distributed companies adopt async-first workflows.
Does this calculator handle daylight saving time?
Yes. It uses each city's IANA time-zone identifier and the browser's Intl engine, so daylight-saving offsets are applied automatically for the current date. You don't need to adjust anything when a region springs forward or falls back.
What are typical working hours by country?
A common default is 9:00–17:00 local, but it varies: Spain often runs later (9:00–18:00+ with a long midday break), much of Latin America 8:00–17:00, India 10:00–19:00 IST, and many tech firms use flexible cores. The calculator defaults to 9–17 but you can adjust each person's range.
Is this working hours calculator free?
Yes, completely free, no signup and no ads. It runs in your browser and installs as a progressive web app. For full meeting scheduling with one-click calendar invites, use the main Timezone Matcher grid.
Related
Tool
Full meeting grid + 1-click invites
Tool
Convert between any two zones
Tool
Live world clock, 24 cities
Guide
How timezones work — full guide
© 2026 Furiosa Studio · Part of the Furiosa Data Tools Network