Local time difference with Hartford
Time difference to major cities
| Afghanistan | |
| Kabul | +9:30 hours |
| Argentina | |
| Buenos Aires | +2 hours |
| Armenia | |
| Yerevan | +9 hours |
| Australia | |
| Perth | +13 hours |
| Darwin | +14:30 hours |
| Brisbane | +15 hours |
| Adelaide | +15:30 hours |
| Canberra | +16 hours |
| Hobart | +16 hours |
| Melbourne | +16 hours |
| Sydney | +16 hours |
| Austria | |
| Salzburg | +6 hours |
| Vienna | +6 hours |
| Azerbaijan | |
| Baku | +9 hours |
| Bahamas | |
| Nassau | same time |
| Bangladesh | |
| Dhaka | +11 hours |
| Belarus | |
| Minsk | +8 hours |
| Belgium | |
| Brussels | +6 hours |
| Brazil | |
| Brasilia | +2 hours |
| Rio de Janeiro | +2 hours |
| Sao Paulo | +2 hours |
| Bulgaria | |
| Sofia | +7 hours |
| Cambodia | |
| Phnom Penh | +12 hours |
| Canada | |
| Vancouver | -3 hours |
| Calgary | -2 hours |
| Edmonton | -2 hours |
| Regina | -1 hour |
| Winnipeg | -1 hour |
| Ottawa | same time |
| Toronto | same time |
| Halifax | +1 hour |
| St. John's | +1:30 hour |
| Chile | |
| Santiago | +2 hours |
| China | |
| Beijing | +13 hours |
| Chengdu | +13 hours |
| Hong Kong | +13 hours |
| Macau | +13 hours |
| Shanghai | +13 hours |
| Colombia | |
| Bogota | same time |
| Cali | same time |
| Medellin | same time |
| Congo | |
| Brazzaville | +6 hours |
| Cote d'Ivoire | |
| Abidjan | +5 hours |
| Croatia | |
| Zagreb | +6 hours |
| Czech Republic | |
| Prague | +6 hours |
| Democratic Republic of the Congo | |
| Kinshasa | +6 hours |
| Denmark | |
| Copenhagen | +6 hours |
| Djibouti | |
| Djibouti | +8 hours |
| Dominican Republic | |
| Santo Domingo | +1 hour |
| Ecuador | |
| Quito | same time |
| Egypt | |
| Cairo | +7 hours |
| Eritrea | |
| Asmara | +8 hours |
| Estonia | |
| Tallinn | +7 hours |
| Ethiopia | |
| Addis Ababa | +8 hours |
| Finland | |
| Helsinki | +7 hours |
| France | |
| Nice | +6 hours |
| Paris | +6 hours |
| Georgia | |
| Tbilisi | +9 hours |
| Germany | |
| Berlin | +6 hours |
| Dusseldorf | +6 hours |
| Frankfurt | +6 hours |
| Hamburg | +6 hours |
| Munich | +6 hours |
| Ghana | |
| Accra | +5 hours |
| Greece | |
| Athens | +7 hours |
| Guatemala | |
| Guatemala | -1 hour |
| Haiti | |
| Port-au-Prince | same time |
| Hungary | |
| Budapest | +6 hours |
| Iceland | |
| Reykjavik | +5 hours |
| India | |
| Bangalore | +10:30 hours |
| Chennai | +10:30 hours |
| Delhi | +10:30 hours |
| Hyderabad | +10:30 hours |
| Jaipur | +10:30 hours |
| Kolkata | +10:30 hours |
| Mumbai | +10:30 hours |
| New Delhi | +10:30 hours |
| Pune | +10:30 hours |
| Indonesia | |
| Jakarta | +12 hours |
| Iran | |
| Tehran | +8:30 hours |
| Iraq | |
| Baghdad | +8 hours |
| Ireland | |
| Dublin | +5 hours |
| Israel | |
| Jerusalem | +7 hours |
| Tel Aviv | +7 hours |
| Italy | |
| Milan | +6 hours |
| Rome | +6 hours |
| Venice | +6 hours |
| Japan | |
| Kyoto | +14 hours |
| Nagoya | +14 hours |
| Osaka | +14 hours |
| Tokyo | +14 hours |
| Jordan | |
| Amman | +8 hours |
| Kazakhstan | |
| Almaty | +10 hours |
| Astana | +10 hours |
| Kenya | |
| Nairobi | +8 hours |
| Kiribati | |
| Kiritimati | +19 hours |
| Kyrgyzstan | |
| Bishkek | +11 hours |
| Latvia | |
| Riga | +7 hours |
| Lebanon | |
| Beirut | +7 hours |
| Lithuania | |
| Vilnius | +7 hours |
| Luxembourg | |
| Luxembourg | +6 hours |
| Malaysia | |
| Kuala Lumpur | +13 hours |
| Marshall Islands | |
| Majuro | +17 hours |
| Mexico | |
| Mexicali | -3 hours |
| Tijuana | -3 hours |
| Guadalajara | -1 hour |
| Mexico City | -1 hour |
| Cancun | same time |
| Monaco | |
| Monaco | +6 hours |
| Mongolia | |
| Ulaanbaatar | +13 hours |
| Morocco | |
| Casablanca | +6 hours |
| Myanmar | |
| Yangon | +11:30 hours |
| Nepal | |
| Kathmandu | +10:45 hours |
| Netherlands | |
| Amsterdam | +6 hours |
| Rotterdam | +6 hours |
| New Zealand | |
| Auckland | +18 hours |
| Christchurch | +18 hours |
| Wellington | +18 hours |
| Nicaragua | |
| Managua | -1 hour |
| Nigeria | |
| Abuja | +6 hours |
| Lagos | +6 hours |
| Northern Mariana Islands | |
| Saipan | +15 hours |
| Norway | |
| Oslo | +6 hours |
| Oman | |
| Muscat | +9 hours |
| Pakistan | |
| Islamabad | +10 hours |
| Karachi | +10 hours |
| Lahore | +10 hours |
| Panama | |
| Panama | same time |
| Peru | |
| Lima | same time |
| Philippines | |
| Manila | +13 hours |
| Poland | |
| Krakow | +6 hours |
| Warsaw | +6 hours |
| Wroclaw | +6 hours |
| Portugal | |
| Lisbon | +5 hours |
| Puerto Rico | |
| San Juan | +1 hour |
| Qatar | |
| Doha | +8 hours |
| Romania | |
| Bucharest | +7 hours |
| Russia | |
| Moscow | +8 hours |
| Saint-Peterburg | +8 hours |
| Chelyabinsk | +10 hours |
| Yekaterinburg | +10 hours |
| Krasnoyarsk | +12 hours |
| Novosibirsk | +12 hours |
| Vladivostok | +15 hours |
| Rwanda | |
| Kigali | +7 hours |
| Saudi Arabia | |
| Jeddah | +8 hours |
| Mecca | +8 hours |
| Riyadh | +8 hours |
| Senegal | |
| Dakar | +5 hours |
| Serbia | |
| Belgrade | +6 hours |
| Singapore | |
| Singapore | +13 hours |
| Slovakia | |
| Bratislava | +6 hours |
| South Africa | |
| Cape Town | +7 hours |
| Johannesburg | +7 hours |
| Pretoria | +7 hours |
| South Korea | |
| Seoul | +14 hours |
| Spain | |
| Barcelona | +6 hours |
| Madrid | +6 hours |
| Sri Lanka | |
| Colombo | +10:30 hours |
| Sudan | |
| Khartoum | +7 hours |
| Sweden | |
| Stockholm | +6 hours |
| Switzerland | |
| Bern | +6 hours |
| Geneva | +6 hours |
| Lausanne | +6 hours |
| Zurich | +6 hours |
| Syria | |
| Damascus | +8 hours |
| Taiwan | |
| Taipei | +13 hours |
| Tanzania | |
| Dar es Salaam | +8 hours |
| Thailand | |
| Bangkok | +12 hours |
| Togo | |
| Lome | +5 hours |
| Tunisia | |
| Tunis | +6 hours |
| Turkey | |
| Ankara | +8 hours |
| Istanbul | +8 hours |
| Uganda | |
| Kampala | +8 hours |
| Ukraine | |
| Odesa | +7 hours |
| United Arab Emirates | |
| Abu Dhabi | +9 hours |
| Dubai | +9 hours |
| United Kingdom | |
| Belfast | +5 hours |
| Birmingham | +5 hours |
| Edinburgh | +5 hours |
| Glasgow | +5 hours |
| Liverpool | +5 hours |
| London | +5 hours |
| United States | |
| Honolulu | -5 hours |
| Anchorage | -4 hours |
| Anaheim | -3 hours |
| Las Vegas | -3 hours |
| Los Angeles | -3 hours |
| Oakland | -3 hours |
| Portland | -3 hours |
| Sacramento | -3 hours |
| San Diego | -3 hours |
| San Francisco | -3 hours |
| San Jose | -3 hours |
| Seattle | -3 hours |
| Stockton | -3 hours |
| Albuquerque | -2 hours |
| Boise | -2 hours |
| Denver | -2 hours |
| El Paso | -2 hours |
| Phoenix | -2 hours |
| Salt Lake City | -2 hours |
| Santa Fe | -2 hours |
| Tucson | -2 hours |
| Arlington | -1 hour |
| Austin | -1 hour |
| Baton Rouge | -1 hour |
| Chicago | -1 hour |
| Dallas | -1 hour |
| Des Moines | -1 hour |
| Fort Worth | -1 hour |
| Houston | -1 hour |
| Kansas City | -1 hour |
| Little Rock | -1 hour |
| Madison | -1 hour |
| Memphis | -1 hour |
| Milwaukee | -1 hour |
| Minneapolis | -1 hour |
| Nashville | -1 hour |
| New Orleans | -1 hour |
| Oklahoma City | -1 hour |
| San Antonio | -1 hour |
| Sioux Falls | -1 hour |
| St. Louis | -1 hour |
| Wichita | -1 hour |
| Atlanta | same time |
| Baltimore | same time |
| Boston | same time |
| Charlotte | same time |
| Cincinnati | same time |
| Cleveland | same time |
| Columbia | same time |
| Columbus | same time |
| Detroit | same time |
| Indianapolis | same time |
| Knoxville | same time |
| Louisville | same time |
| Miami | same time |
| New York | same time |
| Newark | same time |
| Philadelphia | same time |
| Pittsburgh | same time |
| Raleigh | same time |
| Tampa | same time |
| Virginia Beach | same time |
| Washington | same time |
| Guam | +15 hours |
| Uruguay | |
| Montevideo | +2 hours |
| Uzbekistan | |
| Tashkent | +10 hours |
| Venezuela | |
| Caracas | +1 hour |
| Vietnam | |
| Hanoi | +12 hours |
| Zambia | |
| Lusaka | +7 hours |
Time difference to major time zones
| ACDT | +15:30 hours | GST | +9 hours |
| AEDT | +16 hours | HAST | -5 hours |
| AEST | +15 hours | IST | +10:30 hours |
| AKDT | -3 hours | JST | +14 hours |
| AMT | +1 hour | KST | +14 hours |
| AST | +1 hour | MDT | -1 hour |
| BDT | +13 hours | MIST | +16 hours |
| BNT | +13 hours | MST | -2 hours |
| BOT | +1 hour | NDT | +2:30 hours |
| BRST | +3 hours | NPT | +10:45 hours |
| BST | +6 hours | NRT | +17 hours |
| CCT | +11:30 hours | NST | +1:30 hour |
| CDT | same time | NZST | +17 hours |
| CEST | +7 hours | PDT | -2 hours |
| CET | +6 hours | PHT | +13 hours |
| CLST | +2 hours | PKT | +10 hours |
| COST | +1 hour | PST | -3 hours |
| COT | same time | PT | -3 hours |
| CST | -1 hour | SRT | +2 hours |
| CT | -1 hour | SST | -6 hours |
| EDT | +1 hour | TOT | +18 hours |
| EST | same time | UTC | +5 hours |
| ET | same time | WAST | +7 hours |
| GMT | +5 hours |