Scheduling a call across continents, joining a webinar listed in another country’s local time, or coordinating a launch? The time zone converter turns one moment into a clear worldwide picture. Enter a date, a time and the zone it belongs to, then tick the cities you care about — the table shows each local time and its UTC offset for that exact date.
Why a fixed offset is not enough
A common mistake is to memorise a single offset (“New York is 5 hours behind London”) and apply it all year. That breaks twice a year because daylight-saving transitions in each region do not line up. This converter avoids the trap by resolving each zone through the IANA time-zone database for the specific date you enter, so summer-time and winter-time rules are applied correctly and automatically.
How it works
The tool interprets your entered time as a wall-clock time in the source zone, resolves it to a single absolute instant, then formats that instant in every target zone. Because it anchors everything to one instant, the relationships between zones stay correct even across daylight-saving boundaries and date-line roll-overs — a meeting at 09:00 in Tokyo might display as the previous evening in Los Angeles.
Tips for planning meetings
- Convert into the zones of everyone attending, not just your own.
- Watch for the “+1 day” cases near the international date line.
- If you need to add or subtract hours as well, pair this with the time duration calculator.