Time differences between cities
116 city pairs have a page here, each with the usual difference, an hour-by-hour table and the overlap between nine-to-five in both places.
The number every converter leaves out
The difference between two cities is usually quoted as one number, and for most pairs it is one number for most of the year. It is not one number all year. The European Union changes its clocks on the last Sunday in March and the United States on the second Sunday, so for the fortnight between them London and New York are four hours apart rather than five — and a standing call moves by an hour with nobody touching it. Each pair page says which gaps apply and why.
The pairs people look up most
These are the pairs asked for most often. Each has its own page saying what the gap is and the weeks it is something else.
- London to New York
- London to Los Angeles
- London to Tokyo
- London to Sydney
- London to Delhi
- London to Singapore
- London to Dubai
- London to Hong Kong
- London to Toronto
- New York to London
- New York to Los Angeles
- New York to Tokyo
- New York to Delhi
- New York to Paris
- New York to Sydney
- New York to São Paulo
- New York to Beijing
- New York to Dubai
- Los Angeles to New York
- Los Angeles to Tokyo
- Los Angeles to London
- Los Angeles to Sydney
- Los Angeles to Delhi
- Los Angeles to Beijing
- Tokyo to London
- Tokyo to New York
- Tokyo to Singapore
- Delhi to London
- Delhi to New York
- Delhi to Singapore
- Delhi to Dubai
- Delhi to Sydney
- Sydney to London
- Sydney to New York
- Sydney to Singapore
- Singapore to London
- Singapore to New York
- Dubai to London
- Dubai to Delhi
- Paris to New York
- Berlin to New York
- Toronto to London
- Beijing to New York
- Hong Kong to London
- São Paulo to London
The Americas and the Pacific
- New York UTC−5
- Toronto UTC−5
- Chicago UTC−6
- Mexico City UTC−6
- Denver UTC−7
- Los Angeles UTC−8
- Vancouver UTC−8
- Anchorage UTC−9
- Honolulu UTC−10
- São Paulo UTC−3
- Buenos Aires UTC−3
- Lima UTC−5
Europe and Africa
- London UTC
- Dublin UTC
- Lisbon UTC
- Paris UTC+1
- Berlin UTC+1
- Madrid UTC+1
- Rome UTC+1
- Amsterdam UTC+1
- Stockholm UTC+1
- Warsaw UTC+1
- Athens UTC+2
- Helsinki UTC+2
- Istanbul UTC+3
- Moscow UTC+3
- Lagos UTC+1
- Johannesburg UTC+2
- Nairobi UTC+3
The Middle East and South Asia
East Asia and Oceania
- Bangkok UTC+7
- Jakarta UTC+7
- Singapore UTC+8
- Hong Kong UTC+8
- Beijing UTC+8
- Manila UTC+8
- Perth UTC+8
- Tokyo UTC+9
- Seoul UTC+9
- Brisbane UTC+10
- Sydney UTC+10
- Melbourne UTC+10
- Auckland UTC+12
Time differences between countries · Time zones by abbreviation · Cron schedules