Home > Time Zones > World Clock > Time Zone Difference

The World Clock - Time Zone difference from U.S.A. – Montana – Helena

Add or subtract the given number of hours to/from Helena time to get the time in these cities.

Note: Time zone differences will vary during the year, as different countries observe DST during different periods. Therefore, you should usually use The World Clock instead

Sort by: City Search: Settings
Abidjan	+6 hours	Dar es Salaam	+9 hours	Ludhiana	+11:30 hours	Rapid City *	same time
Abu Dhabi	+10 hours	Darwin	+15:30 hours	Lusaka	+8 hours	Rarotonga	-4 hours
Abuja	+7 hours	Delhi	+11:30 hours	Luxembourg *	+8 hours	Recife	+3 hours
Acapulco *	+1 hour	Denpasar	+14 hours	Madison *	+1 hour	Regina	same time
Accra	+6 hours	Denver *	same time	Madrid *	+8 hours	Resolute *	+1 hour
Adak *	-3 hours	Des Moines *	+1 hour	Madurai	+11:30 hours	Reykjavik	+6 hours
Adamstown	-2 hours	Detroit *	+2 hours	Magadan	+18 hours	Richmond *	+2 hours
Addis Ababa	+9 hours	Dhaka	+12 hours	Majuro	+18 hours	Riga *	+9 hours
Adelaide	+15:30 hours	Diego Garcia	+12 hours	Makassar	+14 hours	Rio de Janeiro	+3 hours
Aden	+9 hours	Dili	+15 hours	Makkah	+9 hours	Riyadh	+9 hours
Agra	+11:30 hours	Djibouti	+9 hours	Malabo	+7 hours	Rome *	+8 hours
Aguascalientes *	+1 hour	Dodoma	+9 hours	Male	+11 hours	Roseau	+2 hours
Albuquerque *	same time	Doha	+9 hours	Manado	+14 hours	Rovaniemi *	+9 hours
Alert *	+1 hour	Douglas *	+7 hours	Managua	same time	Sacramento *	-1 hour
Algiers	+7 hours	Dover *	+2 hours	Manama	+9 hours	Saint-Denis	+10 hours
Alice Springs	+15:30 hours	Dubai	+10 hours	Manaus	+2 hours	Saint George's	+2 hours
Almaty	+12 hours	Dublin *	+7 hours	Manila	+14 hours	Saint John (CA - NB) *	+3 hours
Alofi	-5 hours	Dushanbe	+11 hours	Manokwari	+15 hours	Saint John's (Antigua)	+2 hours
Amman *	+9 hours	Easter Island	same time	Maputo	+8 hours	Saint-Petersburg	+10 hours
Amsterdam *	+8 hours	Edmonton *	same time	Marion Island (Prince Edward Islands)	+9 hours	Salem *	-1 hour
Anadyr	+18 hours	El Aaiún *	+7 hours	Maseru	+8 hours	Salt Lake City *	same time
Anchorage *	-2 hours	Eucla	+14:45 hours	Mazatlan *	same time	Salvador	+3 hours
Andorra La Vella *	+8 hours	Fairbanks *	-2 hours	Mbabane	+8 hours	Samara	+10 hours
Ankara *	+9 hours	Fakaofo	+19 hours	Medina	+9 hours	San Diego *	-1 hour
Antananarivo	+9 hours	Fort-de-France	+2 hours	Melbourne	+16 hours	San Francisco *	-1 hour
Apia	+19 hours	Fortaleza	+3 hours	Melekeok	+15 hours	San Jose (CR)	same time
Aqtobe	+11 hours	Frankfurt *	+8 hours	Mexicali *	-1 hour	San Jose (USA) *	-1 hour
Ashgabat	+11 hours	Freetown	+6 hours	Mexico City *	+1 hour	San Juan	+2 hours
Asmara	+9 hours	Funafuti	+18 hours	Miami *	+2 hours	San Marino *	+8 hours
Astana	+12 hours	Gaborone	+8 hours	Midland *	+1 hour	San Salvador	same time
Asuncion	+2 hours	Galapagos Islands	same time	Midway	-5 hours	Sana	+9 hours
Athens *	+9 hours	Geneva *	+8 hours	Milan *	+8 hours	Santiago	+2 hours
Atlanta *	+2 hours	Georgetown	+2 hours	Milwaukee *	+1 hour	Santo Domingo	+2 hours
Auckland	+18 hours	Gibraltar *	+8 hours	Minneapolis *	+1 hour	São Paulo	+3 hours
Augusta *	+2 hours	Glasgow *	+7 hours	Minsk	+9 hours	São Tomé	+6 hours
Austin *	+1 hour	Guadalajara *	+1 hour	Mogadishu	+9 hours	Sapporo	+15 hours
Azores *	+6 hours	Guam (Hagåtña)	+16 hours	Monaco *	+8 hours	Sarajevo *	+8 hours
Baghdad	+9 hours	Guatemala	same time	Monrovia	+6 hours	Seattle *	-1 hour
Baker Island	-6 hours	Guayaquil	+1 hour	Montevideo	+3 hours	Seoul	+15 hours
Baker Lake *	+1 hour	Halifax *	+3 hours	Montgomery *	+1 hour	Shanghai	+14 hours
Baku *	+11 hours	Hamilton *	+3 hours	Montpelier *	+2 hours	Shenzhen	+14 hours
Balikpapan	+14 hours	Hammerfest *	+8 hours	Montreal *	+2 hours	Singapore	+14 hours
Baltimore *	+2 hours	Hanoi	+13 hours	Moroni	+9 hours	Sioux Falls *	+1 hour
Bamako	+6 hours	Happy Valley-Goose Bay *	+3 hours	Moscow	+10 hours	Skopje *	+8 hours
Bandar Seri Begawan	+14 hours	Harare	+8 hours	Mumbai	+11:30 hours	Sofia *	+9 hours
Bandung	+13 hours	Hartford *	+2 hours	Murmansk	+10 hours	Sri Jayawardenapura Kotte	+11:30 hours
Bangalore	+11:30 hours	Havana *	+2 hours	Muscat	+10 hours	St. John's (CA - NF) *	+3:30 hours
Bangkok	+13 hours	Helsinki *	+9 hours	Nagoya	+15 hours	St. Louis *	+1 hour
Bangui	+7 hours	Hermosillo	-1 hour	Nairobi	+9 hours	St. Paul *	+1 hour
Banjul	+6 hours	Ho Chi Minh	+13 hours	Nashville *	+1 hour	Stanley *	+3 hours
Barcelona *	+8 hours	Hobart	+16 hours	Nassau *	+2 hours	Stockholm *	+8 hours
Basse-Terre (Guadeloupe)	+2 hours	Hong Kong	+14 hours	Naypyidaw	+12:30 hours	Sucre	+2 hours
Basseterre (St. Kitts)	+2 hours	Honiara	+17 hours	Ndjamena	+7 hours	Surabaya	+13 hours
Beijing	+14 hours	Honolulu	-4 hours	New Delhi	+11:30 hours	Surat	+11:30 hours
Beirut *	+9 hours	Houston *	+1 hour	New Orleans *	+1 hour	Suva	+18 hours
Belém	+3 hours	Hovd	+13 hours	New York *	+2 hours	Suzhou	+14 hours
Belfast *	+7 hours	Indianapolis *	+2 hours	Newark *	+2 hours	Sydney	+16 hours
Belgrade *	+8 hours	Indore	+11:30 hours	Niamey	+7 hours	Taipei	+14 hours
Belmopan	same time	Inuvik *	same time	Nicosia *	+9 hours	Tallinn *	+9 hours
Belushya Guba	+10 hours	Irkutsk	+15 hours	Norilsk	+14 hours	Tarawa	+18 hours
Berlin *	+8 hours	Islamabad	+11 hours	Nouakchott	+6 hours	Tashkent	+11 hours
Bern *	+8 hours	Istanbul *	+9 hours	Novgorod	+10 hours	Tbilisi	+10 hours
Bhubaneshwar	+11:30 hours	Ittoqqortoormiit *	+6 hours	Novosibirsk	+13 hours	Tegucigalpa	same time
Billings *	same time	Jackson *	+1 hour	Nukualofa	+19 hours	Tehran *	+10:30 hours
Bishkek	+12 hours	Jakarta	+13 hours	Nuuk *	+4 hours	Tel Aviv *	+9 hours
Bismarck *	+1 hour	Jamestown	+6 hours	Odesa *	+9 hours	Thimphu	+12 hours
Bissau	+6 hours	Jayapura	+15 hours	Oklahoma City *	+1 hour	Thiruvananthapuram	+11:30 hours
Blanc-Sablon	+2 hours	Jerusalem *	+9 hours	Omsk	+13 hours	Tijuana *	-1 hour
Bogota	+1 hour	Johannesburg	+8 hours	Oral	+11 hours	Tirana *	+8 hours
Boise *	same time	Juba	+9 hours	Orlando *	+2 hours	Tokyo	+15 hours
Boston *	+2 hours	Kabul	+10:30 hours	Osaka	+15 hours	Topeka *	+1 hour
Brasilia	+3 hours	Kaliningrad	+9 hours	Oslo *	+8 hours	Toronto *	+2 hours
Bratislava *	+8 hours	Kampala	+9 hours	Ottawa *	+2 hours	Tórshavn *	+7 hours
Brazzaville	+7 hours	Kansas City *	+1 hour	Ouagadougou	+6 hours	Tripoli *	+8 hours
Bridgetown	+2 hours	Karachi	+11 hours	Palikir	+17 hours	Tunis	+7 hours
Brisbane	+16 hours	Kathmandu	+11:45 hours	Palma *	+8 hours	Ufa	+12 hours
Brussels *	+8 hours	Kazan	+10 hours	Panama	+1 hour	Ulaanbaatar	+14 hours
Bucharest *	+9 hours	Khartoum	+9 hours	Papeete	-4 hours	Unalaska *	-2 hours
Budapest *	+8 hours	Kigali	+8 hours	Paramaribo	+3 hours	Ürümqi	+14 hours
Buenos Aires	+3 hours	King Edward Point	+4 hours	Paris *	+8 hours	Vaduz *	+8 hours
Bujumbura	+8 hours	Kingston	+1 hour	Patna	+11:30 hours	Valletta *	+8 hours
Cairns	+16 hours	Kingstown	+2 hours	Pensacola *	+1 hour	Vancouver *	-1 hour
Cairo	+8 hours	Kinshasa	+7 hours	Perm	+12 hours	Varanasi	+11:30 hours
Calgary *	same time	Kiritimati	+20 hours	Perth	+14 hours	Vatican City *	+8 hours
Canberra	+16 hours	Kobe	+15 hours	Petropavlovsk-Kamchatsky	+18 hours	Veracruz *	+1 hour
Cape Town	+8 hours	Kolkata	+11:30 hours	Philadelphia *	+2 hours	Victoria	+10 hours
Caracas	+1:30 hours	Komsomolsk-on-Amur	+17 hours	Phnom Penh	+13 hours	Vienna *	+8 hours
Cardiff *	+7 hours	Krasnoyarsk	+14 hours	Phoenix	-1 hour	Vientiane	+13 hours
Casablanca *	+7 hours	Kuala Lumpur	+14 hours	Podgorica *	+8 hours	Vilnius *	+9 hours
Castries	+2 hours	Kuwait City	+9 hours	Pond Inlet *	+2 hours	Vladivostok	+17 hours
Cayenne	+3 hours	Kyiv *	+9 hours	Pontianak	+13 hours	Wake Island	+18 hours
Charleston *	+2 hours	Kyoto	+15 hours	Port-au-Prince *	+2 hours	Warsaw *	+8 hours
Chatham Islands	+18:45 hours	La Paz	+2 hours	Port-aux-Francais	+11 hours	Washington DC *	+2 hours
Chelyabinsk	+12 hours	Lagos	+7 hours	Port Louis	+10 hours	Wellington	+18 hours
Chennai	+11:30 hours	Lahore	+11 hours	Port Moresby	+16 hours	Whitehorse *	-1 hour
Cheyenne *	same time	Las Vegas *	-1 hour	Port of Spain	+2 hours	Windhoek	+7 hours
Chibougamau *	+2 hours	Lhasa	+14 hours	Port Vila	+17 hours	Winnipeg *	+1 hour
Chicago *	+1 hour	Libreville	+7 hours	Portland *	-1 hour	Yakutsk	+16 hours
Chisinau *	+9 hours	Lilongwe	+8 hours	Porto Novo	+7 hours	Yamoussoukro	+6 hours
Chongqing	+14 hours	Lima	+1 hour	Prague *	+8 hours	Yangon	+12:30 hours
Colombo	+11:30 hours	Lincoln *	+1 hour	Praia	+5 hours	Yaoundé	+7 hours
Columbia *	+2 hours	Lisbon *	+7 hours	Pretoria	+8 hours	Yaren	+18 hours
Columbus *	+2 hours	Little Rock *	+1 hour	Providence *	+2 hours	Yekaterinburg	+12 hours
Conakry	+6 hours	Ljubljana *	+8 hours	Pune	+11:30 hours	Yellowknife *	same time
Concord *	+2 hours	Lome	+6 hours	Punta Arenas	+2 hours	Yerevan	+10 hours
Copenhagen *	+8 hours	London *	+7 hours	Pyongyang	+15 hours	Yokohama	+15 hours
Córdoba	+3 hours	Longyearbyen *	+8 hours	Qaanaaq *	+3 hours	Yuzhno-Sakhalinsk	+17 hours
Dakar	+6 hours	Los Angeles *	-1 hour	Québec *	+2 hours	Zagreb *	+8 hours
Dallas *	+1 hour	Louisville *	+2 hours	Quito	+1 hour	Zürich *	+8 hours
Damascus *	+9 hours	Luanda	+7 hours	Rabat *	+7 hours
Danmarkshavn	+6 hours	Lubumbashi	+8 hours	Raleigh *	+2 hours
* = adjusted for daylight saving time (DST) or summer time (174 places). UTC (GMT/Zulu)-time: Thursday, May 23, 2013 at 03:50:03 UTC is Coordinated Universal Time, GMT is Greenwich Mean Time. Great Britain/United Kingdom is one hour ahead of UTC during summer.

Advertising

More information

Related time zone tools

The World Clock – Current times around the world
Event Time Announcer/Fixed Time – Show local times worldwide for your event.
Meeting Planner – Find a suitable time for an international meeting
International Dialing Code Calculator – Learn which dialing codes to use when calling internationally
Time Zone Converter – If it is 3 pm in New York, what time is it in Sydney?