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Time zone tools turn a time in one place into the matching time somewhere else. That sounds easy until daylight saving time gets involved: the gap between New York and London is five hours for most of the year but four hours for a few weeks each spring and autumn, because the two regions change their clocks on different dates.
The TimePanel Time Zone Converter looks up the rules for the exact date you choose, so a meeting planned for next March is converted with next March’s offsets, not today’s. You can pick any of the 400+ IANA time zones by city name or identifier, and the hour-by-hour table shows how a whole working day lines up in both places. Every result also shows the date on each side, which matters when the conversion crosses midnight.
Frequently Asked Questions
What is the difference between a time zone and a UTC offset?
A UTC offset is a fixed number such as UTC-5. A time zone (for example America/New_York) is a set of rules that decides which offset applies on each date, including daylight saving changes.
Why does the difference between two cities change during the year?
Countries start and end daylight saving time on different dates, and many places do not use it at all, so the gap between two cities can shift by an hour for part of the year.
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