Time & Scheduling
World ClockMeeting PlannerCountdown TimerStopwatchAlarm ClockBusiness Days CalculatorView all 9

World Clock

Compare times across cities live, or drag a slider to preview any hour at once.

Runs in your browserNo sign-up required

See Every City Move Together

Most time zone converters make you enter one time and read one result. This one keeps your whole city list visible at once, updating live by default — and dragging the slider previews any hour of the day across all of them simultaneously, so planning ahead doesn't mean repeating the same lookup city by city.

How to Use This Tool

  1. 1Add the cities you care aboutPick from the dropdown — your list is saved automatically for your next visit.
  2. 2Check the live timeEvery city updates every second by default, with a day/night icon showing who's awake.
  3. 3Drag the slider to preview any timeSee what a specific hour looks like across every city at once — useful for planning ahead, not just checking "now".
  4. 4Share your listCopy a link that opens with the exact same cities already added, no account needed on either end.

Good to Know

  • The slider represents a time in your own local timezone; every other city's time updates relative to that as you drag it.
  • Times are computed using each city's actual timezone rules for the current date, so results stay correct across Daylight Saving changes rather than using a fixed offset.
  • Day/night is a simple 7am–7pm local-time range, meant as a quick "are they likely awake" signal rather than a precise sunrise/sunset calculation.
  • A shared link only encodes which cities are shown — no personal data is included, so it's safe to share in a team channel.

Frequently Asked Questions

How many cities can I add?

There's no hard limit — add as many as you need, though beyond 8–10 the list becomes more about specific lookups than quick scanning.

Does the drag slider account for the date changing across midnight?

It previews times within a single day (00:00–23:59) relative to your local date. For checking a meeting on a specific future date across time zones with working hours highlighted, the Meeting Planner is the better tool.

Will my saved city list still be there next time?

Yes — it's saved to your browser's local storage automatically whenever you add or remove a city.

What exactly does the share link contain?

Just the list of timezone identifiers for the cities you've added, encoded in the URL — nothing else is included or transmitted anywhere.

Is this free to use?

Yes, completely free, with no account and no limit on how often you use it.