Hour-by-hour comparison
Hours shown in each city's own local time for the chosen date. The header row is the reference city's day, midnight to midnight.
How to use the planner
Pick the meeting date, then add up to five cities. Put your own first so the header row runs on your day. Each row shows that city's clock hour by hour, colored by how reasonable the hour is. Green is normal business hours, 9:00 to 17:00. Amber is the stretch at either end, early morning and evening. Red is when people are asleep. Look for columns where every row is green. Those are your slots. If there's no all-green column, the least bad options trade green for amber. Never for red.
The classic pairings — and the impossible one
US East Coast and Europe is the easy one. New York mornings are London and Paris afternoons, so 9 to 11 AM Eastern works almost any day. West Coast and Europe is tighter. Only 8 or 9 AM Pacific catches London before evening. US and India works best in the early US morning: 8 AM Eastern is 5:30 or 6:30 PM in India, depending on the time of year. Then there's the famous impossible triangle, San Francisco, London and Singapore. There is no hour that's green for all three. Somebody is always in the red. Teams that span it usually take turns on the bad slot, or split into two meetings that overlap.
Habits that make global meetings kinder
Say the time zone every time you say a time. "3 PM" with no zone attached causes more missed meetings than any math mistake. For recurring calls, remember the daylight saving wobble: a meeting pinned to New York time moves by an hour for Sydney twice a year, in opposite directions. Record anything important, because somebody worth including was probably asleep. And when two slots tie, give it to whoever has been taking the worst slot lately. People remember that.
Frequently asked questions
Why does the comparison change when I change the date?
Daylight saving. The planner applies each city's actual rules for the chosen date, so the alignment between cities genuinely differs between, say, March and April — that's the tool being right, not wrong.
Can I plan for someone working night shifts?
The colors assume standard business hours, but the local times shown are exact — just read the row against their real schedule and ignore the coloring for that city.
How do I share the result?
Once you've found the slot, send it with the converter: set the agreed time in your city and everyone can read their own local equivalent from the table — no screenshots needed.
Want the answers without the table? Read the best time for a global meeting, a cheat sheet by region. Related: the world clock for a live view of all your cities, and daylight saving time explained for why the alignment shifts twice a year.