World Time Clock
Compare the current time, date, and UTC offset across cities worldwide, with a live day/night indicator for each.
Search by city, country, or IANA identifier, then press Add city.
Karachi
Pakistan
Wednesday, 2026-10-21
UTC+05:00 · Asia/Karachi
Lahore
Pakistan
Wednesday, 2026-10-21
UTC+05:00 · Asia/Karachi
Islamabad
Pakistan
Wednesday, 2026-10-21
UTC+05:00 · Asia/Karachi
Delhi
India
Wednesday, 2026-10-21
UTC+05:30 · Asia/Kolkata
Dubai
United Arab Emirates
Wednesday, 2026-10-21
UTC+04:00 · Asia/Dubai
Riyadh
Saudi Arabia
Tuesday, 2026-10-20
UTC+03:00 · Asia/Riyadh
London
United Kingdom
Tuesday, 2026-10-20
UTC+01:00 · Europe/London
New York
United States
Tuesday, 2026-10-20
UTC-04:00 · America/New_York
Los Angeles
United States
Tuesday, 2026-10-20
UTC-07:00 · America/Los_Angeles
Toronto
Canada
Tuesday, 2026-10-20
UTC-04:00 · America/Toronto
Singapore
Singapore
Wednesday, 2026-10-21
UTC+08:00 · Asia/Singapore
Tokyo
Japan
Wednesday, 2026-10-21
UTC+09:00 · Asia/Tokyo
Sydney
Australia
Wednesday, 2026-10-21
UTC+11:00 · Australia/Sydney
Berlin
Germany
Tuesday, 2026-10-20
UTC+02:00 · Europe/Berlin
Paris
France
Tuesday, 2026-10-20
UTC+02:00 · Europe/Paris
Compare two cities
Karachi is the same time as Lahore.
About this tool
Each city card reads the current time in that city's IANA timezone directly from the browser, using Intl.DateTimeFormat — no city's time is ever fetched from a server, and no UTC offset is hardcoded, so daylight saving transitions are always reflected correctly.
How to use it
- Search for a city, country, or timezone and press "Add city" to add it to your board.
- Use the ▲ / ▼ buttons to reorder cities, or the Remove button to drop one.
- Toggle 12/24-hour format, seconds, and date display for the whole board.
- Pick two cities in "Compare two cities" to see their live time difference.
FAQ
Why are UTC offsets not hardcoded?
Many places observe daylight saving time, which changes their UTC offset twice a year, and the rules themselves occasionally change. Every offset here is read live from the browser's own IANA timezone database via Intl, so it is always correct for today's date rather than frozen at build time.
How is day vs. night decided?
From each city's current local hour (06:00–17:59 counts as day). This is a simple, fast heuristic — not an astronomical sunrise/sunset calculation, so it can be off by an hour or two near dawn/dusk or at extreme latitudes.
Is my city list saved?
Yes, in this browser's local storage only, so it survives a refresh. Nothing is sent to a server. Use "Reset to default cities" to start over.
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