Daylight saving time changes in North Dakota, United States

North Dakota has 3 listed IANA time zones. 3 observe daylight saving time changes in 2026.

Best Time to Call North Dakota

Business hours in North Dakota (9 AM-5 PM local time) fall at these local times elsewhere:

• Sao Paulo: 11:00 AM - 7:00 PM ( Convenient)
• Frankfurt: 4:00 PM - 12:00 AM (next day) ( Partial overlap)
• Johannesburg: 4:00 PM - 12:00 AM (next day) ( Partial overlap)
• Singapore: 10:00 PM - 6:00 AM (next day) ( Outside normal hours)
• Hong Kong: 10:00 PM - 6:00 AM (next day) ( Outside normal hours)
• Istanbul: 5:00 PM - 1:00 AM (next day) ( Partial overlap)
• Auckland: 3:00 AM (next day) - 11:00 AM (next day) ( Outside normal hours)

Times shown reflect current UTC offsets and may shift by up to an hour around daylight saving transitions.

Current Time in Cities of North Dakota, United States

About Time in North Dakota

The Boundary That Keeps Creeping West

North Dakota is one of just thirteen states split between two time zones, and unlike most such boundaries, its dividing line has visibly moved westward again and again over more than a century, one county petition at a time. When railroads first divided the country into time zones in 1883, Mountain time covered a substantial swath of the state's southwest and a few outlying pockets in the northwest, with Central time everywhere else. In 1929, the Interstate Commerce Commission, which then controlled time zone boundaries, extended Central time to cover all but a cluster of counties still clustered in the state's far southwest corner.

The westward drift has continued in the decades since regulatory authority passed to the U.S. Department of Transportation in 1967. Oliver County shifted from Mountain to Central time in the early 1990s to better align with the Bismarck metropolitan area, where many of its residents worked and shopped. In 2003, Morton County and part of Sioux County followed after local officials petitioned the federal government, arguing that splitting a single county between two clocks created constant headaches for school bus schedules and court appearances. Mercer County tried to join them at the same time and was denied, but succeeded on a second attempt in 2010. Today the Mountain time zone in North Dakota has shrunk to eight counties in the extreme southwest, a shape carved out almost entirely by more than a century of small, cumulative decisions about whose clocks should match Bismarck's.

Choosing Standard Time Over Daylight Time

While most states that want to stop changing their clocks have pushed for permanent daylight saving time, North Dakota's legislature took the opposite position. In February 2025, the North Dakota House of Representatives passed House Bill 1259 by a vote of 55 to 37, a measure that would keep the state on permanent standard time rather than permanent daylight time, and that would not alter any of the state's existing time zone boundaries. Supporters argued that standard time offers more natural daylight in the morning hours and avoids the disruption to sleep patterns that comes with the twice yearly clock change, while opponents countered that permanent daylight saving time, which would keep evenings brighter later into the year, was the better outcome for the state.

Either preference remains theoretical for the moment. Federal law currently allows a state to opt out of the twice yearly clock change only by adopting standard time year round, the same choice already made by Arizona and Hawaii; adopting daylight saving time permanently, by contrast, is not an option available to any state without an act of Congress. North Dakota's 2025 bill reflects a state choosing the option that is actually within its own power, rather than joining the larger and so far unsuccessful national push for a federal law permitting permanent daylight time instead.

The Clock Made of Flowers

Straddling the border between North Dakota and the Canadian province of Manitoba, the International Peace Garden has marked the passage of time with one of its most photographed features since the 1960s: an eighteen foot diameter floral clock planted with thousands of living flowers each growing season. The garden itself was dedicated on July 14, 1932, before a crowd of roughly fifty thousand visitors from both countries, but its clock arrived more than three decades later, when the Bulova Watch Company donated a working timepiece with a face made entirely of flowers, reported in the Bismarck Tribune in June 1966 as the newest addition to the grounds.

The original Bulova clock was eventually replaced in 2005 with a new mechanism from St. Louis, Missouri, though the basic design has remained the same: a fresh, hand planted arrangement of between two thousand and five thousand annual flowers redesigned every year, powered by an electrical line run out across the park specifically to keep its hands moving. Set within a garden explicitly built as a monument to peaceful relations along what organizers have long called the longest unfortified border in the world, the floral clock has become one of the Peace Garden's signature images, a functioning timepiece built entirely out of a growing season that lasts only a few months at that latitude each year.

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