Choose your date, time and places, then select Convert time.
Turn the globe or move time to follow daylight around Earth.
Drag to turn · Tap a dot to choose a city
Linked to the 24-hour comparison. Arrow keys move one minute. This updates every converted time.
0° longitude
The highlighted line is the prime meridian, the reference for longitude. Time-zone borders follow local rules and do not trace neat lines around the globe.
The boundary is where the Sun’s center reaches the horizon. Twilight can continue on the night side near this edge. This estimate ignores weather, terrain and atmospheric bending of light; it is not a sunrise or sunset forecast. Coastlines and city locations are approximate, and time-zone borders are not shown. Solar method: NOAA · Map data: Natural Earth · City locations: IANA
The scale uses UTC, the shared world time reference.
Move the slider, use its arrow keys for one-minute steps, or use the hour buttons. You can also enter a date and time above.
Approximate daytime: 06:00–18:00 local time. Other hours: approximate nighttime. These clock-based bands do not show sunrise, sunset or actual daylight.
For the selected date and time, including when you move the sliders. Some browser time-zone names do not identify a seasonal rule; those show “status unavailable”.
The same moment, shown on different clocks.
Local-format lines show a typical convention for each country, using Gregorian dates and digits 0–9. Countries can use several languages and formats; these examples follow your browser’s regional data. ISO lines include the UTC offset.
EST means Eastern Standard Time (UTC−05:00). EDT means Eastern Daylight Time (UTC−04:00). New York uses these at different times of year. This converter uses your date and named city to choose the applicable clock rule.
A clock change can skip an hour or repeat one. Countries choose different rules, and many places do not change clocks at all. Abbreviations can mean different things around the world; the named zone and UTC offset identify your result.
Why clocks change, and why the dates differ →Time zone rules come from your browser.
Imagine calling a friend on the other side of the world. It might be afternoon for you, but already the next morning for them. You are talking at the same moment; your clocks show different dates and times.
For example, 2:00 PM in London on 15 January 2026 is 1:00 AM in Sydney on 16 January. Sydney is 11 hours ahead on that date.
Offsets depend on the date: some places move their clocks forward or back during the year. That is why this converter asks for a date as well as a time.
See worked time zone conversion examples →
What is time, and why is Greenwich zero?Start with a date, a local time and the city where that time applies. The converter resolves one moment and shows its local date and time in your target places. Include the date because daylight-saving rules can change the offset.
These clocks all show the same instant. The Sydney result has crossed midnight, so its date is the next day. Reading only the hour would miss that important difference.
On this date New York has changed to daylight time and London has not yet changed. The gap is four hours, compared with five hours in the January example. Use named cities and the actual date instead of assuming a fixed offset.
Choose the named city or time zone. The converter uses the selected date to resolve its offset and shows available daylight-saving details. EST is UTC−05:00; EDT is UTC−04:00.
Moving clocks forward can skip a local hour; moving them back can repeat one. A missing time must be changed. For a repeated time, choose the earlier or later occurrence to identify the intended instant.
No. Formatting changes how a date or time is written. Time-zone conversion shows a particular instant on another place’s clock and can change both the local time and local date.