MultiKit

Time Zone Converter and Meeting Planner: Find a Time That Works

  • Free
  • No sign-up
  • Runs in your browser
  • Version 1.0.1
  • Last updated 2026-10-25
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Type a time in one city and see it in the others, then use the planner to find a meeting hour that is not the middle of the night for somebody.

CityTimeDateOffset

Meeting planner

Each row shows the local hour in that city for every hour of the day below. Click an hour to set the meeting time.

  • Working hours (9-18)
  • Early or late (7-9, 18-22)
  • Night

Everything you enter is processed in your browser and is never sent to a server.

How to use

  1. Pick the date and time and the zone it is in. Press Now for the current time. Add cities with the box below, for example Chicago or Asia/Singapore.
  2. The table shows the time, the date and the offset from UTC in every city. A mark says when daylight saving time is on, and a note says when the date is the day before or after.
  3. The planner lays out the whole day for every city in colors: green for working hours, yellow for early or late, grey for night. Click an hour to set the meeting there. Copy link keeps your cities and time in a link you can send.

Examples

2023-11-15 07:13 in Seoul
→ New York 17:13 on 2023-11-14, London 22:13 on 2023-11-14, Kolkata 03:43 on 2023-11-15
Seoul is UTC+9. New York was on standard time (UTC-5) on that date, and Kolkata is UTC+5:30.
20:00 on 2026-10-07 in Los Angeles
→ Seoul 12:00 on 2026-10-08 (next day)
Los Angeles was on daylight saving time (UTC-7) on that date.
London and Paris, working hours 9 to 18
→ London 09:00-17:00 is shared, eight hours
Paris is one hour ahead, so only eight of the nine hours overlap.

How it works

The zone rules come from the IANA time zone database that every modern browser carries, and the open-source date-fns library with its @date-fns/tz package turns a moment into the wall-clock time in each zone. The offset is read for the exact moment you chose, which is why daylight saving is right for any date. A zone is on daylight saving time when its offset is the higher of its two yearly offsets.

In the planner, each of the 24 hours of the day in the base zone is converted to every other zone, and the hour there is colored: working hours are 9:00 to 17:59, early or late hours are 7:00 to 8:59 and 18:00 to 21:59, and the rest is night. An underline marks an hour that falls on the next day there, and a dotted underline the previous day.

The conversions are tested against known cases, including daylight saving in New York, London and Sydney, half-hour offsets, the date change, and the shared working hours of London and Paris.

Sources

Frequently asked questions

How do I convert a time to another time zone?
Enter the time and its zone at the top, and add the zone you want to see. The table shows what the clocks read there at that same moment, with the date, because it can be a different day.
Does it handle daylight saving time?
Yes. It uses the zone rules built into your browser, which include the dates when each place changes its clocks, so the result is right for the date you choose, not just for today. Cities on daylight saving time are marked DST.
How do I find a time that works for people in different time zones?
Add each person's city and look at the planner. Green is working hours, 9 to 18, in that city. The line above the grid names the hours when everyone is in green. Where there is none, pick the hours with the fewest yellow and grey cells and take turns with who works early or late.
What does UTC+5:30 mean?
It means the clock is five and a half hours ahead of UTC. A few places, such as India, Sri Lanka, Nepal (UTC+5:45) and parts of Australia, use offsets that are not whole hours.
Which cities and zones can I add?
Any zone of the IANA time zone database, which your browser carries. Type a city such as Tokyo or a full name such as America/Chicago. A few capitals and cities share a zone with a bigger one, for example Seoul and Tokyo have the same offset but different names.
Is anything sent to a server?
No. The conversion runs in your browser. Your cities and time are not stored; they only live in the link when you copy it.
Version history
  • 1.0.1 — Clarifies the search title with the tool's main task and whether it is free or runs online.
  • 1.0.0 — First release.

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