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World Clock: Current Time in Cities Worldwide

Live local times for your chosen cities around the world.

Your time

--:--:--

  • New York

    America/New York

    --:--:--

  • London

    Europe/London

    --:--:--

  • Paris

    Europe/Paris

    --:--:--

  • Kolkata

    Asia/Kolkata

    --:--:--

  • Tokyo

    Asia/Tokyo

    --:--:--

  • Sydney

    Australia/Sydney

    --:--:--

Use via API

Current (or given) time in several IANA time zones, with date, UTC offset, day/night and the difference from a reference zone. Send JSON, get JSON back.

POST https://pithlab.com/api/v1/tools/world-clock

curl https://pithlab.com/api/v1/tools/world-clock \
  -H "Authorization: Bearer $PITHLAB_KEY" \
  -H "Content-Type: application/json" \
  -d '{"zones":"America/New_York,Europe/London,Asia/Tokyo","reference":"Europe/London","at":"2026-10-20T12:00:00Z"}'

Fields and responseOpenAPI documentGet an API key

About the World Clock

Live clocks for the cities you choose, each with the date, UTC offset, day or night, and how far ahead or behind your own time it is. Your list is remembered.

How to use the World Clock

  1. Your own clock is at the top. Below are a few major cities to start with.
  2. Add any city or time zone from the list, and remove or reorder the ones you don't need. The list is saved in this browser.
  3. Each clock shows the time, date, UTC offset, a sun or moon for day or night, and the difference from your local time.

Examples

Tokyo at 12:00 UTC on 1 July 2024

Input

2024-07-01 12:00 UTC → Asia/Tokyo

Output

Tokyo: 21:00:00, Mon 1 Jul 2024 (UTC+09:00), night, 9 h ahead
New York, seen from London

Input

2024-07-01 12:00 UTC → America/New_York, local zone Europe/London

Output

New York: 08:00:00, Mon 1 Jul 2024 (UTC-04:00), day, 5 h behind

Frequently asked questions

Are daylight saving changes included?

Yes. Times and offsets come from your browser's time zone database for the current moment, so clocks switch to and from summer time on the right dates, including in the southern hemisphere.

How is day or night decided?

By local clock time: 06:00 to 17:59 shows a sun and the rest of the day a moon. It's a quick guide, not actual sunrise and sunset, which depend on the season and latitude.

Where is my list of cities stored?

Only in this browser's local storage. Nothing is sent anywhere, and clearing your site data or pressing Reset brings back the default cities.