Compare and convert times across multiple timezones instantly
Add your first location to compare time zones across the world
This free world timezone converter and world clock allow you to add as many cities as you need, adjust the reference time in 15-minute increments, and share your comparison link. Use it as a time difference calculator to find the exact interval between two cities or simply compare timezones before planning a meeting.
Whether you're coordinating across continents, planning international calls, or tracking time in multiple locations, this timezone converter makes it easy to see what time it is anywhere in the world.
This timezone converter is essential for anyone who needs to work or communicate across different parts of the world:
A business manager in New York wants to schedule a call with colleagues in London, Tokyo, and Sydney. Using the timezone converter, they can find a time that works for all locations. Adding each city shows it's 5:00 PM in London, 1:00 AM the next day in Tokyo, and 2:00 AM the next day in Sydney when it's 12:00 PM in New York.
A traveler is flying from New York to Paris and wants to know what time they'll arrive. They can use the timezone converter to compare the departure time (3:00 PM EDT New York) with the arrival time (2:00 AM +1 CEST Paris, next day) accounting for the 7-hour flight and 6-hour timezone difference.
A project manager with team members in San Francisco, Dubai, and Singapore needs to find daily meeting times. The converter shows that 4:00 PM PSF San Francisco is 12:30 AM GMT Dubai and 8:00 AM SGT Singapore. This helps identify the best meeting windows for the entire team.
Time zones divide Earth into regions where local time is standardized. The world is divided into 24 main time zones, each roughly 15 degrees of longitude apart. Each timezone is typically offset from UTC (Coordinated Universal Time) by whole hours, though some regions use 30-minute or 45-minute offsets.
Daylight Saving Time (DST) or Summer Time complicates matters further—many countries shift their local time forward during warmer months to make better use of daylight. This means the time difference between two locations can change depending on whether DST is currently in effect. Our converter automatically accounts for DST transitions and displays the correct current time in each location.
UTC (Coordinated Universal Time), formerly known as GMT (Greenwich Mean Time), is the international time standard. All timezones are defined as offsets from UTC. For example, Eastern Standard Time (EST) is UTC-5, meaning it's 5 hours behind UTC, while Central European Time (CET) is UTC+1.
While most timezones are offset by whole hours from UTC, some regions use 30-minute or 45-minute offsets for historical or practical reasons. For example, India uses UTC+5:30, Nepal uses UTC+5:45, and some Australian territories use UTC+9:30. These unconventional offsets can make it tricky to calculate time differences.
Daylight Saving Time (DST) shifts local clocks forward by one hour during warmer months to extend evening daylight. This changes the UTC offset. For example, New York switches from EST (UTC-5) to EDT (UTC-4) in spring. This means the time difference between two cities can vary depending on whether both, one, or neither observes DST.
Yes! The converter generates a shareable link that preserves your selected cities. You can bookmark this link, email it to colleagues, or save it for future use. When others open the link, they'll see the exact same timezone comparison.
This creates periods where the time offset between two locations temporarily changes. For example, during parts of March and November when the US has transitioned to/from DST but Europe hasn't (or vice versa), New York and London have a 4-hour difference instead of the usual 5-hour difference. Our converter automatically accounts for these transitions.
Our timezone converter uses your device's system timezone database and current UTC time, making it extremely accurate—typically accurate to the second. However, if your device's time is incorrect, the converter's results will also be off. Make sure your system clock is synchronized for precise conversions.