Skip to content
AnyToolBox

Search tools

Find a tool by name or keyword

Time Zone Converter

Convert a date and time between world time zones, with daylight saving handled automatically.

100% Client-Side

Set a date, time and source time zone, then add the zones you want to compare.

How to use the Time Zone Converter

  1. 1

    Pick the date and time you want to convert, or click Now.

  2. 2

    Choose the time zone that time is in — your own zone is selected by default.

  3. 3

    Add the cities or time zones you want to compare.

  4. 4

    Read the converted time, date and UTC offset for each zone.

Frequently asked questions

Yes. Conversions use your browser's built-in time zone database, which knows when each region switches clocks, so the offset is correct for the specific date you pick.

When clocks spring forward, an hour is skipped (for example 2:30 AM may not exist), and when they fall back an hour happens twice. We flag those times and use the nearest valid moment.

Every IANA time zone your browser supports — usually over 400, like America/New_York, Europe/London and Asia/Kolkata. Search by city or region name.

For everyday use they're the same time. UTC is the modern scientific standard; GMT is also the name of the UK's winter time zone, which switches to BST (UTC+1) in summer.

More calculators

Age Calculator

Find your exact age in years, months and days, plus total days lived and a countdown to your next birthday.

100% Client-Side

Percentage Calculator

Work out X% of a number, what percent one number is of another, percentage change, and increases or decreases.

100% Client-Side

Loan EMI Calculator

Calculate your monthly loan payment (EMI), total interest and full amortization schedule.

100% Client-Side

Missing a feature or tool?

Tell us what would make Time Zone Converter more useful, or what to build next.