Time ZonesWhat UTC−4 means
A clock set to UTC−4 shows UTC minus 4 hours. When it is 12:00 noon UTC, it is 8:00 am here. Compared with India (UTC+5:30) it is 9 hours 30 minutes behind.
Converting to and from UTC−4
To turn UTC into this time, subtract 4 hours. To go back to UTC, add the same amount. Three examples: 6:00 am UTC is 2:00 am here; 3:00 pm UTC is 11:00 am here; 9:00 am here is 1:00 pm UTC. The calendar date changes whenever the sum passes midnight.
Where UTC−4 sits on the map
The Earth turns 15 degrees of longitude every hour. The line where the sun-time matches UTC−4 exactly is 60° west. The places that use it are spread much wider than that one line. Of the main cities listed below, Jasper (86.9° west) is the farthest west and Campo Grande (54.6° west) the farthest east. By the sun they are about 2 hours 9 minutes apart, yet their clocks agree.
Who is on UTC−4, and when
30 zone areas in 26 countries and territories keep UTC−4 through the whole year. The towns of 15,000 or more there hold about 57 million people (GeoNames figures). 15 more zone areas are on it for only part of the year: for 5 of them it is the standard (winter) time and for 10 it is the moved (summer) time. That is why the number of people on UTC−4 rises and falls with the seasons.
Noon at UTC−4 elsewhere
When a clock on UTC−4 shows 12:00 noon, it is 9:30 pm in India; 4:00 pm in London in January and 5:00 pm in July; 11:00 am in New York in January and 12:00 pm in July; 1:00 am the next day in Tokyo. For any other place or date, use the converter.
Largest cities on this time
New York City, Santiago, Caracas, Toronto, Brooklyn, Queens, Manaus, Santo Domingo.
All year
These places keep UTC−4 through the whole year.
- Anguilla
- Antigua and Barbuda
- Aruba
- Barbados
- Bolivia
- Bonaire, Saint Eustatius and Saba
- Boa Vista, Brazil
- Campo Grande, Brazil
- Cuiaba, Brazil
- Manaus, Brazil
- Porto Velho, Brazil
- British Virgin Islands
- Curacao
- Dominica
- Dominican Republic
- Grenada
- Guadeloupe
- Guyana
- Martinique
- Montserrat
- Puerto Rico
- Saint Barthelemy
- Saint Kitts and Nevis
- Saint Lucia
- Saint Martin
- Saint Vincent and the Grenadines
- Sint Maarten
- Trinidad and Tobago
- U.S. Virgin Islands
- Venezuela
Part of the year
These places are on UTC−4 for part of the year and move their clocks for the rest. Open one for its dates.
- Bahamas
- Bermuda
- Glace Bay, Canada
- Halifax, Canada
- Moncton, Canada
- Toronto, Canada
- Santiago, Chile
- Cuba
- Haiti
- Turks and Caicos Islands
- Detroit, United States
- Indianapolis, United States
- Louisville, United States
- New York, United States
- Vincennes, United States
Neighbouring offsets: UTC−6, UTC−5, UTC−3:30, UTC−3. All UTC offsets.