Overlap between common time zones
Hours when both cities are inside 9 to 5 on a weekday, in the first city's time.
| Cities | June | December |
|---|---|---|
| New York and London | 9am–12pm | 9am–12pm |
| San Francisco and New York | 9am–2pm | 9am–2pm |
| London and Lagos | 9am–5pm | 9am–4pm |
| London and Bangalore | 9am–12:30pm | 9am–11:30am |
| San Francisco and Sydney | 4pm–5pm | 2pm–5pm |
| New York and Bangalore | None | None |
| London and Tokyo | None | None |
Rules for cross-time-zone meetings
- Write times with the city, not the zone abbreviation: “3pm London” is clearer than “3pm BST”.
- Rotate the early and late slots, so one team doesn't always pay for the overlap.
- When there's no overlap, replace the meeting with a written update and a short recorded video.
- Check the weeks in March and October, when the US and Europe change clocks on different dates.
Remote and across time zones? Timecard for remote workers shows where the hours go when your day starts early and ends late.