Timezone Difference
Find the time difference between any two world time zones
100% free. Runs entirely in your browser - your files and data never leave your device and nothing is uploaded to any server.
New York
4:49:00AM
Saturday, October 24, 2026
+5h
London is 5h ahead of New York
London
9:49:00AM
Saturday, October 24, 2026
scheduleConvert a time
London
2:00 PM
09:00 New York is 2:00 PM in London, the same day.
workWorking hours
3 hours overlap: 9:00 AM–12:00 PM in New York = 2:00 PM–5:00 PM in London.
24-hour planner
Hours shown in each zone's local time. A shaded cell in the second row with a dot is on the next or previous day.
All zones - current time
About this tool
Find the time difference between any two world time zones - useful for scheduling calls or meetings across regions, figuring out a good time to reach someone abroad, or just understanding how far apart two locations are in terms of clock time.
How to use this tool
- Select both time zonesChoose source and destination regions/cities for comparison.
- Calculate offset differenceCompute current hour gap including daylight-saving effects.
- Preview equivalent local timesSee how one timezone meeting slot maps to the other.
- Use for scheduling decisionsPick windows that are practical for all participants.
Using UTC to schedule across time zones
UTC is the world’s reference time, and every time zone is written as an offset from it: London is UTC+0 in winter and UTC+1 in summer, New York UTC-5 and UTC-4, and India UTC+5:30 all year. Subtract the two offsets to get the difference.
When you schedule across regions, write the time in each participant’s zone in the invitation - or in UTC - so nobody has to do the arithmetic.
Key features
- Prevents meeting-time confusion across global teams.
- Automatically handles DST shifts and seasonal changes.
- Improves support coverage and handoff planning.
- Quickly visualizes practical overlap hours.
Common uses
- Scheduling client meetings across continents.
- Planning remote-team standups and review sessions.
- Coordinating support shift overlap windows.
- Calculating response-time expectations by region.
Tips for better results
- Confirm date context because DST offsets change over year.
- Prefer overlapping business-hour windows for recurring meetings.
- Share invite in recipient local time when possible.
- Recheck offset near DST change weeks.
Mistakes to avoid
- Using fixed timezone gap assumption year-round.
- Scheduling outside local business hours unintentionally.
- Confusing similarly named zones with different offsets.
- Ignoring timezone in written deadlines and SLA wording.
Frequently asked questions
Yes - the calculated difference reflects whether either location is currently observing daylight saving time, based on the actual current date and each region's rules.
Yes - if one or both locations observe daylight saving time (and especially if they switch on different dates), the effective time difference between them can shift by an hour at different points in the year, not stay perfectly constant.
Check the calculated difference to figure out what time your meeting slot corresponds to in the other location's local time, helping you pick a time that's reasonable for both parties.
UTC is the world's reference time with no daylight saving. Writing a time as UTC avoids confusion when participants are in several zones - everyone converts from one fixed point.
The US switches to daylight saving on the second Sunday in March and Europe on the last Sunday, so for a few weeks the gap between New York and Berlin is one hour shorter than usual. The same happens again in autumn.
Give the time in the host's zone with its abbreviation and add one or two key zones in brackets, for example '15:00 CET (14:00 London, 9:00 New York)'. Calendar invites convert automatically for each guest.