How do I find the best meeting time across multiple time zones?

Enter the meeting date, then add the cities where your participants are located (up to 10). Click 'Show Timeline' to see a 24-hour view with working hours (9 AM – 5 PM) highlighted in green for each city. The tool automatically identifies hours when all participants are within working hours.

Does this tool handle Daylight Saving Time (DST)?

Yes. The Meeting Planner uses the IANA Time Zone Database, which includes all historical and future DST transition rules. The times shown automatically account for DST on the selected date.

Can I use this tool offline?

Yes. All timezone calculations run entirely in your browser using the built-in Intl API. Once the page loads, you can use it without an internet connection.

Cross-Timezone Meeting Planner

Add participant cities and find the best meeting time across time zones — all calculated in your browser.

1Set Date & Locations

2View Timeline

Meeting Date

Day

Month

Year

Participant Locations

Daylight Saving Time (DST) transitions are automatically handled using IANA timezone data. Times shown reflect the correct offset for the selected date.

Zero Upload — all timezone calculations run entirely in your browser

Frequently Asked Questions

How do I find the best meeting time across multiple time zones?: Enter the meeting date, then add the cities where your participants are located (up to 10). Click 'Show Timeline' to see a 24-hour view with working hours (9 AM – 5 PM) highlighted in green for each city. The tool automatically identifies hours when all participants are within working hours.
Does this tool handle Daylight Saving Time (DST)?: Yes. The Meeting Planner uses the IANA Time Zone Database, which includes all historical and future DST transition rules. The times shown automatically account for DST on the selected date.
Can I use this tool offline?: Yes. All timezone calculations run entirely in your browser using the built-in Intl API. Once the page loads, you can use it without an internet connection.

How Time Zone Coordination Works

What Is the IANA Time Zone Database?

The IANA Time Zone Database (also known as tz or zoneinfo) is the standard reference for time zone rules worldwide. It is maintained by the Internet Assigned Numbers Authority and includes all historical and future timezone changes, including DST transitions.

IANA Time Zone Database

How Does Daylight Saving Time Affect Meetings?

DST shifts local clocks forward by one hour in spring and back in autumn. Different countries start and end DST on different dates, which can temporarily change the time difference between locations. This tool automatically calculates the correct offset for any date.

Wikipedia: Daylight Saving Time

Why Use UTC as a Reference?

Coordinated Universal Time (UTC) is the primary time standard worldwide. It does not observe DST and provides a consistent reference point. When scheduling across time zones, it is best practice to agree on a UTC time and let each participant convert to their local time.

BIPM: UTC Reference

Best Practices for Global Team Meetings

When scheduling across multiple time zones, aim for overlapping working hours (9 AM – 5 PM local). If no overlap exists, consider rotating meeting times to share the inconvenience fairly, or record sessions for asynchronous viewing. The ILO recommends respecting reasonable working hours for all participants.

ILO: Working Time Guidelines

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