Question 1

What is ZoneMap?

Accepted Answer

ZoneMap is a free world clock and timezone converter that shows real-time clocks for cities worldwide on an interactive map. It helps remote teams, travelers, and global professionals compare multiple timezones at a glance.

Question 2

How do I convert between timezones?

Accepted Answer

On ZoneMap, add any cities you want to compare using the search function. The app instantly shows the current local time in each city. Use the timeline scrubber to slide to any future time and see the equivalent time in all your selected cities simultaneously.

Question 3

How do I find overlapping work hours between cities in different timezones?

Accepted Answer

ZoneMap includes a working hours overlap bar that visually highlights when business hours (typically 9am–6pm) overlap between your selected cities. Add your team's cities and the overlap is shown as a colored band on the timeline.

Question 4

What is the difference between UTC and GMT?

Accepted Answer

UTC (Coordinated Universal Time) is the modern international time standard, while GMT (Greenwich Mean Time) is a historical timezone. For most practical purposes they are the same offset (UTC+0), but UTC is the precise scientific standard used in IANA timezone databases. ZoneMap uses IANA timezone data for accurate DST handling.

Question 5

How many timezones are there in the world?

Accepted Answer

There are 38 standard UTC offsets worldwide, but the IANA timezone database (which ZoneMap uses) defines over 300 unique timezone identifiers to account for historical DST rules and regional differences. ZoneMap supports searching over 33,000 cities worldwide via the GeoNames database.

Question 6

Which timezone is New York in?

Accepted Answer

New York City is in the Eastern Time timezone (America/New_York). It observes Eastern Standard Time (EST, UTC-5) in winter and Eastern Daylight Time (EDT, UTC-4) in summer. ZoneMap automatically handles DST transitions for New York and all other cities.

Question 7

What timezone is Tokyo in?

Accepted Answer

Tokyo, Japan is in Japan Standard Time (JST, UTC+9). Japan does not observe daylight saving time, so the offset is always UTC+9 year-round. ZoneMap shows the current Tokyo time alongside any other city you add.

Question 8

How do I plan a meeting across different timezones?

Accepted Answer

Add all attendees' cities to ZoneMap, then drag the timeline scrubber to find a time when everyone is within working hours. The working hours overlap bar highlights valid meeting windows. You can share the ZoneMap URL with your timezone selection so everyone sees the same view.

Question 9

Is ZoneMap free to use?

Accepted Answer

Yes, ZoneMap is completely free with no account required. All features — world clock, timezone converter, day/night map, timeline planner, and working hours overlap — are available at no cost at zonemap.live.

Question 10

What is a day/night terminator map?

Accepted Answer

A day/night terminator map shows the boundary between the sunlit and dark halves of the Earth in real time. ZoneMap displays this solar terminator on its interactive world map, so you can immediately see which cities are in daytime and which are in nighttime.