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Time Zone Converter

Convert dates and times locally between IANA time zones such as UTC, Berlin, London, New York and Tokyo.

Input

Private by design: your values never leave your device.

Target Time Zones

4/12

UTC

UTC

01:30 PM

Thursday, Jul 23, 2026

UTC+00:00 · UTC · same day

London

Europe/London

02:30 PM

Thursday, Jul 23, 2026

UTC+01:00 · GMT+1 · same day

New York

America/New_York

09:30 AM

Thursday, Jul 23, 2026

UTC-04:00 · EDT · same day

Tokyo

Asia/Tokyo

10:30 PM

Thursday, Jul 23, 2026

UTC+09:00 · GMT+9 · same day

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Good to know

The time zone converter compares a time across up to 12 time zones at once directly in your browser, with search, multiple sort modes (alphabetical, local time, UTC offset, custom), and 12-/24-hour format. Ambiguous or nonexistent local times caused by daylight saving transitions are detected and can be snapped to the next valid time.

Typical searches include UTC to local time, convert time zone, and calculate meeting time. Calculation runs locally in the browser; date, time, and time zones are not uploaded. Time zone rules come from the browser; very short-notice legal changes may require a browser or app update, and time zone rules can change politically — verify critical appointments in a calendar as well.

Typical use cases

Plan meeting times across multiple time zones

Compare a proposed time simultaneously across up to 12 time zones to find a suitable slot for an international team.

Detect daylight saving edge cases

Check whether a planned time is ambiguous or doesn't exist at all due to daylight saving transitions, before confirming an appointment.

Tips for better results

Set your own time zone as reference

Use “My time zone” to keep your local time as a fixed reference while comparing other time zones.

Also verify critical appointments in a calendar

Time zone rules can change politically on short notice — for legally or business-critical appointments, an additional check is worthwhile.

How it works

Step by step

  1. 1

    Choose the source time zone and time

    Choose date, time, and source time zone, or use “Use now.”

  2. 2

    Add time zones

    Add up to 12 more time zones via search.

  3. 3

    Compare and copy the results

    Sort the list as needed and copy individual or all converted times.

Features

Up to 12 time zones at once

Compare a time across multiple time zones with search and flexible sorting.

Local and private

Date, time, and time zones stay on your device and are not uploaded.

Detection of daylight saving edge cases

Ambiguous or nonexistent local times are detected and can be corrected.

Frequently asked questions

What happens with a nonexistent time?

The tool detects local times that don't exist due to daylight saving transitions and offers to snap to the next valid time.

Are date and time uploaded?

No. Date, time, and time zones are not uploaded and stay on your device.

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