Selected time zones
Type a city or zone in the search box to add it, then reorder or remove rows. Times use your browser’s Intl.DateTimeFormat implementation and the IANA time-zone database.
The clock refreshes automatically. “Offset” includes daylight-saving context when applicable.
Calculation details
Date and time results depend on your browser time-zone data and selected inputs. Time-zone laws can change; verify critical schedules with participants.
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Use this result
Share the current inputs or ask ChatGPT to explain the calculation in context.
What does this calculator estimate?
A world clock shows the current time in cities around the globe. Open it to compare local times across major zones at a glance.
- Current time in major cities
- Handles daylight saving
- At-a-glance time comparison
What a world clock is for
Distributed teams, travelers, and international callers need to know everyone's current time without mental math. The world clock renders the same instant in each city's local time, applying zone offsets and DST automatically.
Limitations to watch for
Times update with the system clock — keep your device time accurate. DST changes happen on different dates by country. For meeting planning, use the meeting planner to find the overlap.
How to use it in practice
Check the clock before calls and deadlines. Pair it with the timezone converter for specific times and the meeting planner for scheduling. Update it as teams change.
['Open the world clock.', 'Scan the cities you care about.', 'Use the times for calls and deadlines.']
How this calculator works
Formula
Shows the current time in major world cities and time zones simultaneously, applying each zone's offset and daylight saving rules.
Worked example
When it's 9:00 AM in New York, the clock shows 2:00 PM in London and 6:00 AM in Los Angeles (summer).
Assumptions to verify
- The system clock is accurate.
- City zones use current IANA offsets.
- Times are read at the moment of viewing.
Frequently asked questions
What is a world clock?
A display of the current time in major cities and time zones simultaneously.
How accurate is it?
As accurate as your device clock — it applies each zone's offset and DST.
Does it handle daylight saving?
Yes — zones reflect current DST rules.
How is it different from the timezone converter?
The converter finds a specific time in another zone; the world clock shows current times everywhere.
Can I plan meetings with it?
Use it for a quick check, then the meeting planner for scheduling.
Why is the time different in summer?
Daylight saving shifts some zones; the clock follows.
What cities does it include?
Major world cities across the primary time zones — the standard set.
Cite this tool
BoringToolsKit. “World Clock.” boringtoolskit.com/world-clock/ (reviewed 2026-08-25). Free to reference in articles, syllabi, and answer posts with a link.
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