Time Zone Converter
Convert time between world time zones instantly. Handles Daylight Saving Time automatically.
World Clock
About Time Zone Converter
This free time zone converter helps you quickly and accurately convert time between any two time zones in the world. Whether you are scheduling a meeting with colleagues across the globe, planning international travel, or coordinating with remote team members, this tool makes it simple to find the exact corresponding time in another region. All conversions happen directly in your browser using the JavaScript Intl API, so no data is sent to any server.
The converter automatically handles Daylight Saving Time (DST) transitions, which is one of the most common sources of confusion in time zone calculations. DST rules vary by country and region: for example, the United States and most of Europe observe DST but on different schedules, while countries like Japan, China, and India do not observe DST at all. When you select a date and time that falls during a DST transition, this tool correctly adjusts the offset so you always get the right result without needing to remember which regions spring forward or fall back and when.
You can compare time across multiple zones simultaneously by adding up to six target time zones. Each zone card shows the converted time, full date with day of week, UTC offset, and whether the zone is currently observing DST. The world clock section at the bottom displays the current live time in major cities around the globe, updating every second. This gives you an at-a-glance view of what time it is right now in key business hubs like New York, London, Tokyo, Sydney, Dubai, and Mumbai.
Time zone conversion is essential for international business communication, flight booking, remote team coordination, live event scheduling, and contacting friends or family abroad. The tool uses the IANA time zone database, which is the standard used by operating systems and programming languages worldwide, ensuring consistent and reliable results across all modern browsers.
FAQ
Q: Does this tool handle Daylight Saving Time correctly?
A: Yes. The converter uses the browser's built-in Intl.DateTimeFormat API with IANA time zone identifiers. This API automatically applies the correct DST offset for any given date and time zone, including historical and future transitions. You do not need to manually account for DST.
Q: Why does the UTC offset change for the same city at different times of year?
A: Cities that observe Daylight Saving Time shift their clocks forward by one hour in spring and back in fall. For example, New York is UTC-5 (EST) in winter but UTC-4 (EDT) in summer. The tool reflects the correct offset for the specific date you select.
Q: Can I convert time for a date in the past or future?
A: Absolutely. You can enter any date in the date picker to see what the converted time would be on that specific day. This is useful for checking past event times or planning future meetings across time zones.
Q: Is my data stored or sent to a server?
A: No. All calculations are performed entirely in your browser using JavaScript. No times, dates, or time zone selections are transmitted anywhere. The tool works fully offline once the page has loaded.