UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks and time. It is effectively the successor to GMT (Greenwich Mean Time) and does not observe Daylight Saving Time.

Does this tool handle Daylight Saving Time (DST)?

Yes. Our converter automatically accounts for Daylight Saving Time rules for each specific location and date. If New York is in EDT (UTC-4) in summer and EST (UTC-5) in winter, the tool adjusts automatically.

How many time zones are there?

While theoretically there are 24 hourly time zones, in practice there are over 38 because some regions use 30-minute or 45-minute offsets (like India, Nepal, and parts of Australia).

What is the International Date Line?

It's an imaginary line in the Pacific Ocean. Crossing it to the west adds a day; crossing to the east subtracts a day. Our tool handles these date changes when converting times across the Pacific.

Can I schedule meetings with this?

Absolutely. It's the primary use case. You can find overlapping 'business hours' between London, New York, and Tokyo to schedule a call that works for everyone.

World Time Zone Converter

Convert time between different time zones instantly. Plan meetings and coordinate globally.

Local Time

UTC

Nov 30

Sun Local

United Kingdom

Europe/London

Nov 30

Sun +0h

United States (New York)

America/New_York

Nov 30

Sun -5h

Japan

Asia/Tokyo

Dec 1

Mon +9h

Connecting a Globalized World

In today's remote-first world, your team, clients, or family might be spread across multiple continents. "9 AM" means nothing without a location attached.

Our World Time Converter eliminates the confusion of mental math and "is it tomorrow there?" questions. It provides precise, DST-aware conversions for thousands of cities worldwide.

Understanding Time Zones

🌍 UTC vs. GMT

GMT (Greenwich Mean Time) is a time zone officially used in some European and African countries. UTC (Coordinated Universal Time) is a time standard. They share the same time, but UTC is the scientific reference point.

☀️ Daylight Saving Time (DST)

Many regions move clocks forward 1 hour in summer to extend daylight. This means the time difference between London and New York can change from 5 hours to 4 hours for a few weeks in March/October when they switch on different dates.

📅 The Date Line

The International Date Line (IDL) sits roughly at 180° longitude. It's where the new calendar day begins. When it's Friday afternoon in California, it's already Saturday morning in Australia.

⏱️ Odd Offsets

Not all time zones are whole hours. India is UTC+5:30. Nepal is UTC+5:45. Eucla, Australia is UTC+8:45. Our tool handles these irregularities perfectly.

Tips for Scheduling Global Meetings

The "Golden Hours": For US/Europe/Asia overlap, 13:00 UTC to 15:00 UTC is often the only viable window.
Check Dates: Always confirm the day of the week. A Monday morning meeting in Tokyo is a Sunday night call for San Francisco.
Use 24-Hour Format: Avoid AM/PM confusion. "14:00" is unambiguous; "2:00" could be middle of the night.

Frequently Asked Questions

Why does the time difference change during the year? ▼

This is due to Daylight Saving Time (DST). Countries start and end DST on different dates. For example, the US starts DST in early March, while the UK starts in late March. During those few weeks, the time difference shifts by one hour.

What is "Zulu" time? ▼

Zulu time is a military and aviation term for UTC (Universal Time Coordinated). It is named after the "Z" suffix (e.g., 1500Z) used in nautical time zones, which corresponds to the Zero meridian.

Is the time accurate? ▼

Yes. We use the IANA Time Zone Database (the industry standard used by all major operating systems) to ensure we have the latest rules for every region, including recent political changes to time zones.

Can I add my own city? ▼

Our database includes thousands of major cities. If your specific small town isn't listed, simply choose the nearest major city in the same time zone (e.g., choose "Los Angeles" for anywhere in US Pacific Time).