Compare and convert times between different global time zones.
How to Use Time Zone Converter
Set the date and time you want to convert. It starts at your current time.
Choose the zone that time is in (From) and the zone you want it in (To).
Read the converted date and time, including the weekday and the zone's abbreviation. Use Swap Timezones to go the other way.
Daylight saving is handled for you
The conversion uses your browser's built-in time zone database, the same one your phone and computer use, so daylight saving changes are applied on the right dates. That matters: the gap between New York and London is usually five hours, but it's four for two or three weeks in March and for about a week around the start of November, because the US and Europe change their clocks on different weekends. India doesn't use daylight saving, so its offset from the US and UK changes twice a year.
Pick the date as well as the time; converting a time in July and in December can give different answers.
Zones included
UTC, London, New York, Chicago, Denver, Los Angeles, Paris, Athens, India (IST, UTC+5:30), Dubai, Tokyo, Shanghai, Singapore, Sydney and Auckland. If your city isn't listed, pick one that shares its time zone; Mumbai and Delhi use India time, and Toronto matches New York.
Key Features & Practical Use Cases
Scheduling a call between India and the US or UK without getting the hour wrong.
Checking what time a live event or product launch is in your city.
Turning a UTC time from a server log or flight schedule into local time.
Planning when to message friends or colleagues abroad.
Frequently Asked Questions
Is IST UTC+5:30 all year?
Yes. India Standard Time doesn't change for daylight saving.
What's the difference between GMT and UTC?
For everyday purposes they show the same time. UTC is the precise scientific standard; London uses GMT in winter and BST (UTC+1) in summer.
Why did the converted time change when I changed the date?
One of the zones has daylight saving, so its offset is different at that time of year.
Can I add more cities?
Not at the moment. Choose a listed city in the same time zone as yours.
About OneClickly
OneClickly is a set of 119 free tools for PDFs, images, text, everyday math and code. They run in your browser, so the files and text you work with stay on your device.