ClockTools

How to Schedule Calls Across Time Zones: A Practical Guide

Coordinating meetings with people in different time zones is one of the biggest challenges of remote work and international business. Here is a practical guide to getting it right.

Understanding the Challenge

When you are working with team members, clients, or partners spread across the globe, finding a meeting time that works for everyone can feel impossible. A 9 AM meeting in New York is 2 PM in London, 9 PM in Singapore, and 11 PM in Sydney. Someone always gets the short end of the stick.

The key is to be strategic about scheduling and to use the right tools to minimize confusion.

Step 1: Know Your Time Zones

Before scheduling anything, get clear on the time zones involved. Do not guess or assume. Use our Time Difference Calculator to see the exact offset between locations.

Remember that time zones are not static. Daylight Saving Time shifts can change the offset by an hour. For example, the UK and US do not always change their clocks on the same date, leading to a brief period where the usual time difference changes.

Step 2: Find the Overlap Window

Look for the hours when all participants are within reasonable working hours. Generally, this means between 8 AM and 8 PM local time for each person.

For teams spanning North America and Europe, this window is usually morning US time / afternoon European time. For teams spanning Europe and Asia-Pacific, early morning or late afternoon European time tends to work.

When there is no good overlap (like between the US West Coast and Asia), consider:

  • Rotating meeting times so the burden is shared
  • Recording meetings for those who cannot attend live
  • Using asynchronous communication for most discussions

Step 3: Communicate Clearly

When sending meeting invitations, always include:

  • The time in multiple time zones (e.g., 3 PM EST / 8 PM GMT / 9 PM CET)
  • A clear indication of which time zone is the reference
  • A link to a time zone converter for recipients to check their local time

Better yet, use calendar applications that automatically convert times based on each recipient's time zone settings.

Step 4: Use UTC as a Neutral Reference

For teams that regularly coordinate across many time zones, consider using UTC (Coordinated Universal Time) as a common reference. Our UTC Converter makes this easy.

Saying a meeting is at 14:00 UTC is unambiguous. Everyone can convert to their local time, and there is no confusion about which time zone was meant.

Step 5: Be Mindful of Cultural Expectations

Different cultures have different expectations about work hours:

  • In some countries, late-night meetings are acceptable; in others, they are not
  • Weekend availability varies significantly across cultures
  • Public holidays differ around the world

When in doubt, ask your international colleagues about their preferences.

Tools to Help

Make your life easier with these ClockTools utilities:

Final Tips

  • Double-check times around Daylight Saving transitions
  • Send calendar invites rather than just mentioning times in emails
  • Include the meeting link in the calendar invite description
  • Consider recording important meetings for those in inconvenient time zones

International scheduling will never be perfect, but with the right approach and tools, you can minimize confusion and respect everyone's time.