Search to add a city and set a reference city. Differences use current daylight saving rules. Drag a handle or focus it and press ←/→ or Home/End to reorder.
Compare New York and London against Seoul before contacting colleagues. Use the converter for a future meeting date.
At the same instant, equal offsets mean equal local times. Differences can change seasonally in cities that observe daylight saving.
Your list, order and reference city stay in this browser’s localStorage. There is no cross-device sync.
60 major cities are available. The map is schematic; nearby pins use leader lines. Accuracy depends on your device clock and browser time zone data. Refreshing resets running timers and stopwatch measurements.