Time Zone Converter – Free World Time Converter

Real-time clocks updating every second. Click any city card to load it instantly into the converter below.

Select two cities to instantly find overlapping working hours (9 AM – 6 PM) for scheduling international meetings. Never accidentally book a midnight call again.

Get accurate results in under 30 seconds — perfect for meetings and travel:

Features that put this free tool ahead of alternatives like WorldTimeBuddy:

Trusted by professionals and travelers in 150+ countries every day:

• Remote Teams & Managers — Schedule standups, 1-on-1s, and all-hands calls with teammates across multiple countries. Use the meeting planner to find fair overlap windows for the whole team.
• Business Professionals — Plan international client calls, vendor meetings, and conference calls. See the exact time in the other party's city before sending any calendar invite.
• Travelers & Expats — Check arrival times, local business hours, flight connection windows, and stay in sync with family back home without doing time zone math manually.
• Freelancers & Contractors — Set deadline times in your client's time zone, track billable hours across regions, and coordinate delivery across continents accurately.
• Students & Academics — Join international webinars, live online courses, and global virtual conferences at the correct local time. Never miss a live session.
• Sports & Entertainment Fans — Find out when international matches, esports tournaments, live streams, and award shows are airing in your local time zone.

Standard UTC offsets for major cities. Use the converter above for DST-accurate results on any specific date:

Complete suite of free time and productivity tools — no login ever required:

Time zones divide the Earth into 24 vertical regions, each roughly 15 degrees of longitude wide, corresponding to one hour of time difference. The world uses UTC (Coordinated Universal Time) as its reference point, with all other zones expressed as offsets like UTC+5:30 for India or UTC−8 for Los Angeles.

How Daylight Saving Time Works

Daylight Saving Time (DST) is the practice of advancing clocks by one hour during warmer months to extend evening daylight. Countries in North America typically spring forward in March and fall back in November. Most European countries follow a similar schedule. Countries near the equator — including India, Singapore, Dubai, and much of Asia — do not observe DST at all, which means the time difference between these countries and DST-observing nations changes twice per year.

For example, when the United States observes DST, the difference between New York and Mumbai shifts from 10.5 hours to 9.5 hours. Our tool applies these rules automatically based on the exact date you enter, so you never need to calculate manually.

Why Time Zones Matter for Remote Work

With remote work now standard across industries, understanding time differences is essential for day-to-day business operations. A manager in London coordinating with developers in Bangalore needs to know that at 9 AM London time, it is already 2:30 PM in India — still within business hours. But if that same meeting were scheduled for 6 PM London, it would fall at 11:30 PM in India, which is unreasonable.

Our meeting planner feature addresses this problem directly. By selecting two cities, you can instantly see every hour where both locations fall within standard working hours (9 AM to 6 PM). This eliminates the back-and-forth of manual time comparison and helps managers schedule meetings that respect every team member's work-life balance.

Common Time Zone Conversion Questions

Some of the most frequently searched conversions include EST to IST (New York to India), PST to GMT (Los Angeles to London), and GST to EST (Dubai to New York). Each of these involves different DST rules and half-hour or full-hour offsets that change depending on the time of year. Our conversion tool handles all these edge cases automatically.

For business travelers, understanding the local time at a destination before arrival prevents missed connections and scheduling mistakes. For families with members living abroad, knowing the current time in their city without calculation reduces the awkwardness of calling at an inappropriate hour.

The Difference Between UTC, GMT, and Time Zone Abbreviations

UTC and GMT are often used interchangeably in everyday speech, but they are technically different. UTC is the atomic clock standard maintained by the International Bureau of Weights and Measures, while GMT is the civil time for the United Kingdom outside of British Summer Time. They are both at UTC+0, but UTC is the scientific standard used by computers, aviation, and global communications networks.

Time zone abbreviations like EST, IST, JST, and GST are informal labels used for convenience. Because many abbreviations are ambiguous — IST could mean India Standard Time, Ireland Standard Time, or Israel Standard Time — our tool uses full IANA time zone identifiers like Asia/Kolkata and Europe/Dublin internally, ensuring precise calculations for every location.

Time Zone Tips for Frequent Travelers

Frequent international travelers benefit most from a reliable world clock tool. Before boarding a flight from New York to London, for instance, you can check exactly what time you will land in local UK time and whether the London office will still be open on arrival. Business travelers crossing multiple time zones in a single trip — such as a New York to Dubai to Singapore route — can use our tool to map out each city's current time and plan their schedule accordingly. Jet lag is already challenging enough without the added confusion of time calculation errors; having a quick and accurate free tool eliminates that friction entirely.