Time differences between cities

How far apart major cities are, and when the gap changes.

Pages for some of the most-searched city pairs, each with the exact time difference on every date in 2026 and 2027 and worked examples around the clock changes:

Difference from London in winter and summer

Hours ahead of (+) or behind (−) London in mid-January and mid-July 2027. The difference changes during the year whenever one city changes its clocks and the other does not, or they change on different dates.

CityJanuary 2027July 2027
Abu Dhabi+4 h+3 h
Adelaide+10:30 h+8:30 h
Amsterdam+1 h+1 h
Anchorage−9 h−9 h
Athens+2 h+2 h
Atlanta−5 h−5 h
Auckland+13 h+11 h
Bangkok+7 h+6 h
Barcelona+1 h+1 h
Beijing+8 h+7 h
Bengaluru (Bangalore)+5:30 h+4:30 h
Berlin+1 h+1 h
Bogotá−5 h−6 h
Boston−5 h−5 h
Brisbane+10 h+9 h
Brussels+1 h+1 h
Bucharest+2 h+2 h
Budapest+1 h+1 h
Buenos Aires−3 h−4 h
Cairo+2 h+2 h
Calgary−6 h−7 h
Cape Town+2 h+1 h
Casablanca0−1 h
Chicago−6 h−6 h
Copenhagen+1 h+1 h
Dallas−6 h−6 h
Delhi+5:30 h+4:30 h
Denver−7 h−7 h
Dhaka+6 h+5 h
Doha+3 h+2 h
Dubai+4 h+3 h
Dublin00
Frankfurt+1 h+1 h
Halifax−4 h−4 h
Helsinki+2 h+2 h
Ho Chi Minh City+7 h+6 h
Hong Kong+8 h+7 h
Honolulu−10 h−11 h
Houston−6 h−6 h
Istanbul+3 h+2 h
Jakarta+7 h+6 h
Johannesburg+2 h+1 h
Karachi+5 h+4 h
Kathmandu+5:45 h+4:45 h
Kuala Lumpur+8 h+7 h
Kyiv+2 h+2 h
Lagos+1 h0
Las Vegas−8 h−8 h
Lima−5 h−6 h
Lisbon00
Los Angeles−8 h−8 h
Madrid+1 h+1 h
Manila+8 h+7 h
Melbourne+11 h+9 h
Mexico City−6 h−7 h
Miami−5 h−5 h
Milan+1 h+1 h
Montreal−5 h−5 h
Moscow+3 h+2 h
Mumbai+5:30 h+4:30 h
Munich+1 h+1 h
Nairobi+3 h+2 h
New York−5 h−5 h
Osaka+9 h+8 h
Oslo+1 h+1 h
Paris+1 h+1 h
Perth+8 h+7 h
Phoenix−7 h−8 h
Prague+1 h+1 h
Reykjavik0−1 h
Rio de Janeiro−3 h−4 h
Riyadh+3 h+2 h
Rome+1 h+1 h
San Francisco−8 h−8 h
Santiago−3 h−5 h
Seattle−8 h−8 h
Seoul+9 h+8 h
Shanghai+8 h+7 h
Singapore+8 h+7 h
Stockholm+1 h+1 h
Sydney+11 h+9 h
São Paulo−3 h−4 h
Taipei+8 h+7 h
Tel Aviv+2 h+2 h
Tokyo+9 h+8 h
Toronto−5 h−5 h
Vancouver−7 h−8 h
Vienna+1 h+1 h
Warsaw+1 h+1 h
Washington DC−5 h−5 h
Wellington+13 h+11 h
Zurich+1 h+1 h

For any other pair or date, use the time zone converter.