How to Schedule Meetings Across Time Zones

Scheduling across time zones goes wrong in a specific way. Nobody gets it badly wrong; somebody gets it wrong by an hour, once, in a way that only surfaces when a colleague in Sydney joins an empty call at 11pm. The arithmetic is easy enough to attempt in your head and just hard enough to get wrong.

Stop Converting, Start Mapping

The fix is to stop converting individual times and lay the whole day out instead. Our multi-timezone meeting planner takes a date, a home zone and up to five other zones, and prints all 24 hours as a grid with one column per location. Business hours are shaded in each column, so the overlap band is the thing your eye finds first rather than something you have to work out.

Seeing all 24 hours matters. The usable slot for a team spread across three continents is very often outside somebody's normal day, and a tool that only shows business hours hides exactly the compromise you need to see.

Generate It for the Actual Date

One caveat, and it is the one that causes real mistakes: the conversions are correct for the date you enter, not in general. Daylight saving shifts do not happen on the same day everywhere, so between mid-March and mid-April, and again in the autumn, the gap between London and New York or between the US and Australia is not what it was last month. A grid generated for the wrong week is confidently wrong. Regenerate it for the meeting's actual date.

Name the Zone, Not the Offset

Write invitations as "14:00 UTC" or "09:00 New York", never as "2pm my time". Offsets like GMT+1 change twice a year; zone names do not. Half-hour zones such as Kolkata catch out anyone assuming everything lands on the hour.

Rotate the Inconvenience

When there is no comfortable overlap -- and across enough zones there usually is not -- the decision is whose evening gets used, not whether anyone's does. Rotating that between locations is fairer than defaulting to headquarters hours forever, and it is easier to hold yourself to if the rotation is written down. Mark the recurring slots on a weekly planner so the pattern is visible, and put the fixed cross-zone commitments on a monthly calendar where the whole team can see who is carrying the awkward hour this month.