All tools · Date and time tools

World Clock

Live local time plus any cities you follow.

Free to use, no sign-up required. World Clock is one of 198 tools built into Xenition, alongside a chat that can use them for you.

Shows your local time and date beside a list of other cities’ times, plus a world map with a pin per city and a glow over the daylit side. Handy for scheduling calls across time zones.

How to use World Clock

  1. Read your local time, date and zone at the top.
  2. Check the list below, which starts with London, New York and Tokyo.
  3. Pick a city from “Add a city…” and press the plus button to add it, or the X beside a city to remove it.
  4. On the map, amber pins mark listed cities and a pulsing gold pin marks your saved location.

How it works

Each city’s time is your device clock formatted in that city’s IANA time zone, so the browser applies daylight saving. The addable cities are New York, Los Angeles, Chicago, London, Paris, Berlin, Dubai, Dhaka, Kolkata, Singapore, Tokyo and Sydney. The glow is centred on the longitude where the sun is overhead: −15° for every hour past 12:00 UTC.

Example

At 12:00 UTC on 15 January 2026, with Kolkata and Sydney added, the list shows London 12:00, New York 07:00, Tokyo 21:00, Kolkata 17:30 and Sydney 23:00, and the glow centres on the middle of the map, over longitude 0°.

Questions about World Clock

Why is Kolkata 30 minutes off from other zones?

India uses one zone at UTC+5:30. A few places use other offsets, such as Nepal at UTC+5:45.

Why does the gap to London change during the year?

The UK and the US change clocks on different dates, so for a few weeks each spring and autumn the gap is an hour smaller.

Use it from chat

You do not have to open World Clock to use it. Ask Xenition in plain language and it runs the right tool, then carries the answer into whatever you are working on — a document, a spreadsheet, a deck.

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