Time Zone Planner: London, New York, Tokyo

Coordinating an international meeting can be tricky. Use this interactive time zone converter and meeting planner to find the perfect overlapping working hours across London, New York, Tokyo. Easily visualize day and night, compare local times side by side, and schedule your global event with confidence.

The Challenges of Global Time Management

Coordinating meetings across London, New York, and Tokyo is a logistical puzzle. These three cities represent major global financial and cultural hubs, but they occupy vastly different time zones. When it is morning in New York, the workday in London is already well underway, while Tokyo is deep into the evening or night. Understanding these offsets is the first step toward effective global communication.

Understanding the Time Zones

To plan effectively, you must account for the specific offsets from Coordinated Universal Time (UTC):

  • New York: Operates on Eastern Standard Time (EST) or Eastern Daylight Time (EDT), usually UTC-5 or UTC-4.
  • London: Operates on Greenwich Mean Time (GMT) or British Summer Time (BST), usually UTC+0 or UTC+1.
  • Tokyo: Operates on Japan Standard Time (JST), which is UTC+9 year-round without daylight saving adjustments.

The biggest challenge arises because daylight saving time (DST) is observed in the UK and the US at different times of the year, while Japan does not observe it at all. This creates "shift" periods where the gap between your cities changes by an hour, potentially disrupting your established meeting schedule.

How to Find the Perfect Meeting Window

Finding a time that respects everyone's work-life balance requires a systematic approach. The "Golden Window"—a time slot where all three regions are awake—is extremely narrow. Usually, this occurs early in the morning for New York, mid-afternoon for London, and late at night for Tokyo.

To simplify your scheduling, follow these practical steps:

  • Identify the overlap: Look for the 1-2 hour window where Tokyo is ending their day and New York is beginning theirs.
  • Rotate the burden: If you hold recurring meetings, alternate the time so that no single region is always stuck with the "after-hours" slot.
  • Use visual planners: Utilize digital tools that visualize these zones side-by-side rather than doing mental math. Seeing the day laid out linearly helps you spot hidden gaps you might otherwise miss.
  • Record the sessions: If a common time is impossible to find, prioritize recording the meeting for the region that cannot attend live.

By shifting away from mental calculations and toward automated visualization, you reduce the risk of scheduling errors and ensure that your global team or partners stay productive without unnecessary burnout.