What is the most accurate way to check the current time in another country?

The most reliable method is to use your browser's built-in Intl.DateTimeFormat API, which reads live data from your device's clock and converts it using the IANA timezone database. HOUR uses exactly this approach — no external APIs, no server lag, just accurate real-time conversion for every country and time zone.

What does UTC offset mean, and why does it change?

UTC (Coordinated Universal Time) is the global time standard. UTC offset is the difference between a location's local time and UTC — for example, Seoul is UTC+9. The offset can change twice a year for countries that observe Daylight Saving Time (DST), shifting clocks forward or back by one hour.

How do I convert time zones without getting confused by AM/PM or date changes?

Use the Compare page to place multiple cities side by side. The 24-hour mini timeline on each card shows you at a glance which hours overlap between locations, including when a date changes. You can also drag the Time Simulator slider to test any specific hour.

Which countries observe Daylight Saving Time (DST)?

About 70 countries observe DST, mainly in North America and Europe. The United States (except Arizona and Hawaii), Canada, and most European countries shift their clocks in spring and fall. Countries near the equator — including most of Asia, Africa, and the Middle East — do not observe DST.

What is the difference between PST, PDT, EST, EDT?

PST (Pacific Standard Time, UTC-8) and PDT (Pacific Daylight Time, UTC-7) refer to the same region of the US West Coast — PST in winter, PDT in summer. Similarly, EST (Eastern Standard Time, UTC-5) applies in winter and EDT (Eastern Daylight Time, UTC-4) applies in summer. The S/D switch happens due to Daylight Saving Time.

Can I check the time for all 196 countries at once?

Yes. The HOUR hub page displays real-time clocks for all countries and regions, organized by continent. All cards are visible without any hidden tabs, so search engines can index every country clock and you can scroll through the entire world at a glance.

Does this site work offline?

HOUR uses only your browser's native time APIs — no external network calls are needed to display the correct time. Once the page has loaded, clocks will continue to show the correct time even if your internet connection drops.

How do US state time zones work?

The US has six standard time zones: Eastern, Central, Mountain, Pacific, Alaska, and Hawaii-Aleutian. Most states follow one zone, but some states like Indiana, Arizona, and Nebraska have counties that follow different rules. HOUR tracks each of the 51 states (including DC) individually with their correct IANA timezone.

Can I use HOUR to schedule international meetings?

Yes. Open the Compare page, add the cities your team is in, and the side-by-side view shows everyone's local time at a glance. Look for overlapping business hours — typically the 9 AM–6 PM window on each card — to find a slot that works for all participants.

Why do some countries have half-hour or quarter-hour UTC offsets?

Most time zones differ from UTC by whole hours, but some — like India (UTC+5:30), Iran (UTC+3:30), and Nepal (UTC+5:45) — use non-standard offsets for historical or geographic reasons. HOUR correctly handles all IANA-defined offsets, including these fractional cases.

World Clock — 280+ cities & time zones

⌘K

Current Location

00:00:00

Timezone

OffsetLocal

Global Time Mapping

Live sync of world hubs — pulsing nodes show day/night status

DaytimeNighttime

Chrono Simulator

States & Provinces

US 51 · Canada 13 · Australia 8 — real-time local clocks

America

🇺🇸Alabama

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World Clock — 280+ cities & time zones

Global Time Mapping

Chrono Simulator

World Time Deck

🇺🇸New York

🇬🇧London

🇫🇷Paris

🇦🇪Dubai

🇰🇷Seoul

🇯🇵Tokyo

🇸🇬Singapore

🇦🇺Sydney

🇺🇸Los Angeles

🇧🇷São Paulo

🇮🇳Mumbai

🇷🇺Moscow

Time Zone Abbreviations

States & Provinces

🇺🇸Alabama

🇺🇸Alaska

🇺🇸Arizona

🇺🇸Arkansas

🇺🇸California

🇺🇸Colorado

🇺🇸Connecticut

🇺🇸Delaware

🇺🇸Washington D.C.

🇺🇸Florida

🇺🇸Georgia

🇺🇸Hawaii

🇺🇸Idaho

🇺🇸Illinois

🇺🇸Indiana

🇺🇸Iowa

🇺🇸Kansas

🇺🇸Kentucky

🇺🇸Louisiana

🇺🇸Maine

🇺🇸Maryland

🇺🇸Massachusetts

🇺🇸Michigan

🇺🇸Minnesota

🇺🇸Mississippi

🇺🇸Missouri

🇺🇸Montana

🇺🇸Nebraska

🇺🇸Nevada

🇺🇸New Hampshire

🇺🇸New Jersey

🇺🇸New Mexico

🇺🇸New York

🇺🇸North Carolina

🇺🇸North Dakota

🇺🇸Ohio

🇺🇸Oklahoma

🇺🇸Oregon

🇺🇸Pennsylvania

🇺🇸Rhode Island

🇺🇸South Carolina

🇺🇸South Dakota

🇺🇸Tennessee

🇺🇸Texas

🇺🇸Utah

🇺🇸Vermont

🇺🇸Virginia

🇺🇸Washington

🇺🇸West Virginia

🇺🇸Wisconsin

🇺🇸Wyoming

Countries & Regions

Asia

🇦🇫Afghanistan

🇦🇲Armenia

🇦🇿Azerbaijan

🇧🇭Bahrain

🇧🇩Bangladesh

🇧🇹Bhutan

🇧🇳Brunei

🇰🇭Cambodia

🇨🇳China