Quebec Time Zone — Q
Military letter Q (Quebec) maps to the UTC-4 offset from Coordinated Universal Time. Covers Atlantic Canada, Venezuela, and Caribbean islands.
Quebec (Q) — UTC-4
Thursday, 22 October 2026 GMT-4
About Quebec
UTC offset
UTC-4
Letter Q = Quebec in the NATO phonetic alphabet.
Where Q is used
Covers Atlantic Canada, Venezuela, and Caribbean islands.
Places on UTC-4 (Q time) in 2026
54 zones in the tz database are at UTC-4 for at least part of 2026. Zones listed under January or July only are on this offset for part of the year, because they change their clocks for daylight saving time. Civil abbreviations at this offset: EDT, AST.
All year (31 zones)
Anguilla, Antigua & Barbuda, Aruba, Barbados, Bolivia, Brazil, British Virgin Islands, Canada, Caribbean Netherlands, Curaçao, Dominica, Dominican Republic, Grenada, Guadeloupe, Guyana, Martinique, Montserrat, Puerto Rico, Sint Maarten, St. Barthélemy, St. Kitts & Nevis, St. Lucia, St. Martin, St. Vincent & Grenadines, Trinidad & Tobago, U.S. Virgin Islands, Venezuela
America/Anguilla · America/Antigua · America/Aruba · America/Barbados · America/Blanc-Sablon · America/Boa Vista · America/Campo Grande · America/Caracas · America/Cuiaba · America/Curacao · America/Dominica · America/Grenada · America/Guadeloupe · America/Guyana · America/Kralendijk · America/La Paz · America/Lower Princes · America/Manaus · America/Marigot · America/Martinique · America/Montserrat · America/Port of Spain · America/Porto Velho · America/Puerto Rico · America/Santo Domingo · America/St Barthelemy · America/St Kitts · America/St Lucia · America/St Thomas · America/St Vincent and 1 more
In January only (6 zones)
Bermuda, Canada, Greenland
America/Glace Bay · America/Goose Bay · America/Halifax · America/Moncton · America/Thule · Atlantic/Bermuda
In July only (17 zones)
Bahamas, Canada, Chile, Cuba, Haiti, Turks & Caicos Islands, United States
America/Detroit · America/Grand Turk · America/Havana · America/Indiana/Marengo · America/Indiana/Petersburg · America/Indiana/Vevay · America/Indiana/Vincennes · America/Indiana/Winamac · America/Indianapolis · America/Iqaluit · America/Kentucky/Monticello · America/Louisville · America/Nassau · America/New York · America/Port-au-Prince · America/Santiago · America/Toronto
Converting Q time
In a military date-time group the zone letter follows the time: 151430Q JAN 26 means 14:30 Quebec time on 15 January 2026, which is 151830Z JAN 26 in Zulu (UTC).