time zones in North America

The times given below are no more accurate than the time and time zone setting of your computer. According to your computer, UTC time is

Zone	Symbol	Add to UTC	Daylight Saving
Zone	Symbol	Add to UTC	Symbol
Atlantic Time	AST	−4	ADT	−3
Eastern Time	EST	−5	EDT	−4
Central Time	CST	−6	CDT	−5
Mountain Time	MST	−7	MDT	−6
Pacific Time	PST	−8	PDT	−7
Alaska Time	AKST	−9	AKDT	−8
Hawaii-Aleutian Time	HAST	−10	HADT	−9 for Aleutians
Hawaii-Aleutian Time	HAST	−10	not observed in Hawaii
Samoa		−11	not observed

In the United States, by federal law, where daylight saving time is observed it begins at 2 am on the second Sunday in March, and ends at 2 am on the first Sunday in November.

1. Code of Federal Regulations, Title 49, Part 71. Available on the Web at www.access.gpo.gov/nara/cfr/waisidx_99/49cfr71_99.html

Time zones

Country	Add to UTC	Daylight Saving (Summer Time)			Time Now
Country	Add to UTC	Add to UTC	Begin	End	Time Now
Bermuda	−4	−3	same as US
Canada
Alberta	−7	−6	same as US
British Columbia	−8	−7	same as US
Cranbrook, Golden & Invermere	−7	−6	same as US
Dawson Creek, Ft. St. John	−8	no
Labrador	−4	−3	same as US
SE Labrador	−3½	−2½	same as US
Manitoba	−6	−5	same as US
Atikokan, New Osnaburgh & Pickle Lake	−6	no
New Brunswick	−4	−3	same as US
Newfoundland	−3½	−2½	same as US
NW Territories	−7	−6	same as US
Nova Scotia	−4	−3	same as US
Nunavit
eastern Nunavit (most of province)	−5	−4	same as US
central Nunavit, Kangiqliniq	−6	−5
western Nunavit	−7
Ontario	−5	−4	same as US
Big Trout Lake	−6	−5	same as US
Prince Edward Is.	−4	−3	same as US
Quebec	−5	−4	same as US
east of the Natashquan River	−4	−3
Saskatchewan	−6	no
Creighton, Denare Beach	−6	−5	same as US
Lloydminster	−7	−6	same as US
Yukon	−8	−7	same as US
Greenland	−3	−2
Thule	−4	−3
Scoresbysund	−1	0
St. Pierre & Miquelon	−3	no

time zones in North America

Time zones defined by the U. S. Department of Transportation1

Time zones

Time zones defined by the U. S. Department of Transportation¹