Choose the date, city and intended occurrence. An hour and minute alone may not identify one instant.

The date belongs in the question

“What is 09:00 in New York in London?” is incomplete without a date. Cities can move their clocks on different days, and some never change them. Clock.live applies the selected city’s named-zone rules for the entered date, then shows the full destination date. It supports local dates from 1970 through 2100 in both places.

Choose each city from the search results so its identity is settled. If a name is shared by cities in the same country, keep the region in view. Type the local date and time, then select Convert time. Editing the input afterwards marks the old result as stale; convert again before copying it.

A skipped time has no valid conversion

In New York on 8 March 2026, the local clock moves forward from 01:59:59 to 03:00:00. The entered time 02:30 does not occur there. Clock.live keeps the input and explains the gap instead of silently changing the time to 03:30.

Choose a time that actually exists, or check the organizer’s intended time. A gap is not a slow connection or a formatting error. It means the local clock label has no matching instant under the selected zone rules.

A repeated time needs your choice

In New York on 1 November 2026, 01:30 occurs twice. The first occurrence has offset UTC−04:00; the second has UTC−05:00. They are one real hour apart. The converter presents both options without preselecting one, and shows what each means at the destination.

A repeated time needs your choice
New York local inputUTC instantLondon result
1 Nov 2026, first 01:30 (UTC−04:00)05:30 UTC1 Nov 2026, 05:30
1 Nov 2026, second 01:30 (UTC−05:00)06:30 UTC1 Nov 2026, 06:30

Keep enough context when passing the answer on

Copy result includes both places, dates, named zones and offsets, plus the chosen occurrence when it matters. If browser clipboard access is denied, the page offers selectable text. A late clipboard reply from an older result cannot confirm that a newer result was copied.

Not every clock change is one hour. Some regions use half-hour changes, and historical offsets can include seconds. The converter preserves nonzero historical seconds when they affect an answer. Time-zone rules can also be amended after a future event is planned, so recheck important future arrangements closer to the date.