What time zone am I in right now?

Open this page and press Use my location in the controls above the map. Your browser resolves where you are, the map flies to that point, and the panel shows your coordinates, local time, and official time zone identifier such as Europe/Paris. You can also search a city or click the map to see its IANA zone and current local time without sharing your location.

What time zones does this map show?

The map draws idealized UTC offset bands from UTC-12 to UTC+14, each spanning 15° of longitude. They are drawn as clean bands rather than political borders so the global pattern of offsets is readable at a glance. Real zones follow country and state boundaries, so a band tells you the standard offset for a longitude, not the legal time zone of a specific town.

How do I find what time zone a city is in?

Either press Use my location for your own location, or click the city on the map. The controls above the map reports the latitude and longitude of the point you clicked and resolves the time zone for it. The selected location uses an IANA time zone and its daylight-saving rules; the background bands are only a simplified reference.

Why do some places have unusual offsets like UTC+5:45?

A handful of countries chose offsets that are not whole hours, usually to align daylight with working hours or to keep a single national time. Nepal runs on UTC+5:45, Newfoundland on UTC-3:30, India on UTC+5:30, and parts of central Australia on UTC+9:30. These are all visible on the map as bands offset from the main sequence.

Why is my detected time zone different from my system clock?

Two things can cause this. Your device may be set to a fixed offset rather than an automatic one, which drifts when daylight saving changes. Or you may be near a zone boundary, where the band under your location and the legal zone of your town differ. The panel reports what the lookup service returns for your coordinates, which is the zone that legally applies to that point.

What is the difference between UTC and GMT?

For everyday purposes they show the same time. UTC is the modern atomic-clock standard and the reference everything else is offset from; GMT is the older astronomical time at the Greenwich meridian, still used as a synonym in the UK and in some aviation and maritime contexts. When a zone is written as GMT+1 it means the same offset as UTC+1.

What is a UTC offset and how is it written?

A UTC offset is the amount you add to or subtract from UTC to get local time, written as UTC+2 or UTC-5, or as +02:00 and -05:00 in data. Fractional offsets such as +05:45 mean 5 hours and 45 minutes. Two places can share an offset without sharing a time zone, because their daylight saving rules may differ later in the year.

What is an IANA time zone name?

IANA names are the region/city identifiers from the tz database, such as Europe/London, America/New_York, or Asia/Kolkata. Software should store these rather than fixed offsets, because the name carries the full history and future of a region's offset and daylight saving rules. A fixed offset is a snapshot; the IANA name keeps working when the rules change.

Does the map show daylight saving time?

The coloured bands show standard offsets. DST is not drawn as separate bands because it is a date-dependent rule rather than a fixed geographic area: the same country shifts by an hour for part of the year and then shifts back. Fewer than half of the world's countries observe it at all, and the countries that do start and end on different dates.

When does daylight saving time start and end?

It varies by country and year. In the European Union clocks change on the last Sunday of March and the last Sunday of October. In the United States and Canada the change is on the second Sunday of March and the first Sunday of November. Southern hemisphere countries such as Australia, New Zealand, and Chile run their DST period across the opposite months. Confirm the current dates before scheduling across a changeover.

Why do some countries no longer observe daylight saving time?

Countries drop DST when the assumed energy savings do not materialise, or when the disruption to agriculture, transport, and cross-border business outweighs the benefit. Russia, Turkey, Japan, China, India, and most of Africa and South America stay on one offset all year. Their positions on the map therefore do not shift seasonally.

Which country has the most time zones?

France, with 12, because it counts overseas departments and territories from French Guiana to French Polynesia. Russia has 11 across a contiguous landmass spanning UTC+2 to UTC+12. The United States also has 11 including Hawaii, Alaska, and territories such as Guam. Counting overseas territories is what separates these totals from the handful of zones a country uses on its mainland.

How accurate is the time zone data?

Offsets shown on the map come from standard UTC band definitions and are accurate for the longitude they cover. The lookup for a specific coordinate uses a public time zone service that follows the IANA tz database, which is the same reference operating systems use. What this page does not do is track the exact minute a particular country changes its rules; verify official sources before a legally significant deadline.

Does the tool work for ocean coordinates and the poles?

Yes. Clicking a point in open ocean reports the offshore band for that longitude, and the polar regions are covered by the same longitude-based bands. Nautical time is normally stated as a zone description rather than a named zone, so treat the offset as the longitude band rather than as a legal zone.

Can I use this for scheduling meetings across time zones?

Yes, and it is the most common use. Find each participant's offset on the map, note the difference between them, and remember that the gap can change by an hour when one side enters or leaves daylight saving. For a recurring meeting, check both the current offset and the offset during the months you are scheduling into.

Why do developers need to care about time zones?

Storing a local time without its zone is the classic source of date bugs. Save timestamps in UTC, record the user's IANA zone name alongside them, and convert for display only. Because a zone's offset changes when governments alter DST rules, an IANA name plus a UTC instant stays correct where a stored offset silently goes wrong.

Is my location data private?

Yes. Your location is resolved locally in your browser and passed to a privacy-friendly public API (Open-Meteo) for time zone lookup. GeoDataViewer does not store or log your coordinates, and nothing about your location is written to a profile.

Is this time zone map free to use?

Yes. There is no account, no usage limit, and no payment. The page runs entirely in your browser, so there is no server-side lookup quota to run out of either.

What else can I do with a coordinate on this site?

Take the latitude and longitude shown in the panel and convert it with the coordinate converter or the EPSG converter, find its UTM zone, or open a raster and vector file at the same place in the Studio viewer. Those pages are linked at the bottom of this one.

World Time Zone Map & Local Time Finder

Quick answer: search a city, enter coordinates, or click the map to see its current local time and IANA time zone, including daylight saving.

Time zones are displayed as 15° longitude bands around the world.

Use the controls above the map to get your current time zone from your location.

How to use

Pan and zoom the map to explore the global time zone bands.
Search for a city, enter latitude and longitude, or click a point on the map.
To find your own time zone, press Use my location and allow location access.
Read the selected place’s local date, time and IANA time zone above the map. Daylight-saving rules are applied automatically.

About the time zone data

The colored bands represent an idealized set of time zones based on 15° longitude steps from UTC-12 to UTC+11. Real-world time zones follow country and region borders and may differ from these simplified shapes, but this view is useful for understanding global UTC offsets at a glance.

Your local time zone

When you use the Use my location tool, your location is resolved locally in the browser and passed to a privacy-friendly public API to obtain your local time zone, elevation and basic weather. GeoDataViewer does not store or log your coordinates.

Countries with the most time zones

France

Including overseas territories like French Guiana and French Polynesia.

Russia

Contiguous landmass spans from Kaliningrad (UTC+2) to Kamchatka (UTC+12).

United States

Includes Hawaii, Alaska, and overseas territories like Guam.

Australia

Includes external territories like Norfolk Island and Antarctic bases.

United Kingdom

Mostly due to overseas territories in the Atlantic and Pacific oceans.

Canada

Spans from Pacific Time (UTC-8) to Newfoundland Time (UTC-3:30).

Interesting time zone facts

• China's Single Time Zone: China uses a single time zone (UTC+8) across the entire country, despite spanning five geographical time zones. This creates late sunrises in the west (e.g., Xinjiang).
• India's Standardization: India also observes a single standard time (UTC+5:30) for the whole nation to simplify transport and communication schedules across its vast territory.
• Daylight Saving Time (DST): Less than 40% of countries worldwide currently observe DST. It is primarily used in Europe and North America, while most countries in Africa and Asia (near the equator) do not use it.
• Fractional Offsets: Not all time zones are hour-aligned. Examples include Nepal (UTC+5:45), Newfoundland (UTC-3:30), Iran (UTC+3:30), and parts of Australia (UTC+8:45, UTC+9:30).
• International Date Line: The line is not straight; it zig-zags around islands like Kiribati so the whole country can be on the same calendar day. Kiribati's Line Islands are in UTC+14, the earliest time zone on Earth.
• Samoa's Time Travel: In 2011, Samoa skipped Friday, December 30th entirely, jumping from UTC-11 to UTC+13 to better align its trade days with Australia and New Zealand.
• Antarctica's Chaos: Since lines of longitude converge at the South Pole, Antarctica has no official time zone. Research stations usually observe the time of their supply base country or nearby New Zealand.
• UTC vs. GMT: While often used interchangeably, GMT (Greenwich Mean Time) is a solar time standard based on Earth's rotation, whereas UTC (Coordinated Universal Time) is defined by atomic clocks and is the precise scientific basis for civil time.
• Extreme Time Difference: The Line Islands (Kiribati) are at UTC+14, while Baker Island (USA) is at UTC-12. Although they are geographically close, the time difference between them is 26 hours—more than a full day.
• DST Variations: While most regions shift by 1 hour, Lord Howe Island in Australia only shifts by 30 minutes (UTC+10:30 to UTC+11). Also, the start and end dates of DST vary significantly between North America and Europe.
• Space Time: The International Space Station (ISS) uses UTC (Coordinated Universal Time) for all its operations, ensuring coordination between control centers in different countries.
• Nepal's Unique Offset: Nepal has a time zone of UTC+05:45. It is one of the few places with a 45-minute offset, chosen to mark the time relative to the peak of a specific mountain.
• North Korea's Shift: In 2015, North Korea created its own time zone (UTC+08:30) called "Pyongyang Time," but switched back to UTC+09:00 in 2018 to align with South Korea for diplomatic reasons.

Major Countries and Regions Time Zones

North America

United States

Eastern (EST/EDT) UTC-5 / -4
Central (CST/CDT) UTC-6 / -5
Mountain (MST/MDT) UTC-7 / -6
Pacific (PST/PDT) UTC-8 / -7
Alaska (AKST/AKDT) UTC-9 / -8
Hawaii (HST) UTC-10

Canada

Newfoundland UTC-3:30 / -2:30
Atlantic UTC-4 / -3
Eastern UTC-5 / -4
Central UTC-6 / -5
Mountain UTC-7 / -6
Pacific UTC-8 / -7

Mexico

Central (Most of country) UTC-6
Pacific UTC-7
Northwest UTC-8
Southeast UTC-5

Europe

Western Europe

UK, Ireland, Portugal UTC+0 / +1

Central Europe

France, Germany, Italy, Spain, Poland, Sweden, Norway, etc.

Standard Time (CET) UTC+1
Summer Time (CEST) UTC+2

Eastern Europe

Finland, Ukraine, Greece, Romania, etc.

Standard Time (EET) UTC+2
Summer Time (EEST) UTC+3

Russia (Western)

Kaliningrad UTC+2
Moscow, St. Petersburg UTC+3
Samara UTC+4

Asia

East Asia

China (CST) UTC+8
Japan (JST) UTC+9
South Korea (KST) UTC+9
North Korea UTC+9

Southeast Asia

Singapore, Malaysia UTC+8
Philippines UTC+8
Vietnam, Thailand UTC+7
Indonesia (WIB/WITA/WIT) UTC+7 / +8 / +9

South & West Asia

India (IST) UTC+5:30
Pakistan UTC+5
Saudi Arabia UTC+3
UAE UTC+4
Iran UTC+3:30

Oceania

Australia

Western (AWST) UTC+8
Central (ACST) UTC+9:30
Eastern (AEST) UTC+10
* Daylight saving time adds +1h in some states

New Zealand

Standard (NZST) UTC+12
Summer (NZDT) UTC+13

South America

Brazil

Brasília Time UTC-3
Amazon Time UTC-4
Fernando de Noronha UTC-2
Acre Time UTC-5

Other Countries

Argentina UTC-3
Chile (Standard) UTC-4
Colombia, Peru UTC-5
Venezuela UTC-4

Africa

Egypt UTC+2 / +3
South Africa UTC+2
Nigeria UTC+1
Kenya UTC+3
Morocco UTC+1

What is a time zone?

A time zone is a region that has agreed to keep the same clock. The world is divided into roughly 24 of them because the Earth turns 15° of longitude every hour, so a band of that width keeps local noon near the middle of the day. That is the theory, and the map on this page draws it faithfully.

Practice is messier. Time zones are set by governments, not by geometry, so they follow national and state borders, stretch to keep a country on one clock, and occasionally sit half an hour or three quarters of an hour off the hour. A longitude band tells you the standard offset for a position; only the legal zone tells you what time a particular town keeps.

How to find your time zone

Use your own location. Press Use my location in the controls above the map. Your browser resolves where you are and the map moves to that point.
Or click anywhere. Clicking a point on the map reports its coordinates and resolves the time zone for it, which is useful when you are checking somewhere you are not.
Read the offset. The panel shows local time and the zone identifier. Compare it against the coloured bands to place it in the global sequence.

Standard time, daylight saving, and why offsets move

Standard time is a region's baseline offset. Daylight saving time shifts that baseline forward by an hour for part of the year, usually to move an hour of daylight from the morning into the evening. It is a rule with dates attached, not a place, which is why this map does not draw it as separate bands.

The dates differ by country and change occasionally by law. The European Union switches on the last Sunday in March and back on the last Sunday in October. The United States and Canada switch on the second Sunday in March and back on the first Sunday in November. Australia, New Zealand, and Chile run their summer periods across the opposite months. Any recurring meeting that crosses one of those weekends moves by an hour unless the participants' rules happen to match.

A further complication: countries sometimes change their standard offset outright. When that happens, a stored offset becomes wrong while a stored zone name such as America/Santiago stays correct, because the name resolves against the current rules. That is the practical argument for storing IANA names rather than fixed offsets.

Methodology and data

The coloured bands are rendered from a GeoJSON file of 38 idealized offset regions covering UTC-12 through UTC+14, each 15° of longitude wide. They are drawn as clean bands because the point of the map is the global pattern of offsets, and political outlines at this scale obscure it.

The lookup for a clicked or detected point is provided by a public time zone service that follows the IANA tz database, the same reference used by operating systems and programming languages. Your coordinates are sent to that service only when you ask for a lookup; the map itself does not report your position anywhere.

Limitations to keep in mind

Bands are approximations. Near a border, the band under your cursor can differ from the legal zone of the town you are pointing at.
Daylight saving is not drawn. During a DST period a region's real offset is one hour ahead of the band shown.
Offset equality is not zone equality. Two places at UTC+1 may diverge later in the year if only one of them observes DST.
This page is a reference, not a legal authority. For statutory deadlines, confirm against the official time authority for that country.

Glossary

UTC: Coordinated Universal Time, the atomic-clock standard that every offset is measured from.
GMT: Greenwich Mean Time, the older astronomical equivalent of UTC. Used interchangeably in everyday speech.
UTC offset: The amount added to UTC to get local time, written UTC+2 or +02:00.
IANA time zone: A region/city identifier from the tz database, such as Europe/Berlin, that carries the full history of a region's offsets and DST rules.
DST: Daylight saving time, a seasonal one-hour shift forward observed by fewer than half of the world's countries.
Standard time: A region's baseline offset, before any seasonal adjustment.
Fractional offset: An offset that is not a whole hour, such as India's UTC+5:30 or Nepal's UTC+5:45.

Related tools

Coordinate converter Convert the latitude and longitude shown here into DMS, UTM, or MGRS.
UTM zone finder Get the UTM zone and EPSG code for the same point.
EPSG converter Move coordinates between coordinate reference systems.
Current location map Show your live position with elevation and local weather.
Bounding box tool Turn an extent into GeoJSON, WKT, or a map URL.
Studio viewer Open your own spatial data on an interactive map.