Time in Saskatchewan

The Canadian province of Saskatchewan is geographically located in the Mountain Time Zone. However, most of the province observes Central Standard Time year-round. As a result, it is effectively on daylight saving time (DST) year round, as clocks are not turned back an hour in autumn.

The city of Lloydminster is the only exception to this arrangement. Located partly in Saskatchewan and partly in Alberta, it observes Mountain Time year-round, and changes its clocks for DST. Since Lloydminster does change its clocks, the time in Saskatchewan is the same in all parts of the province during the summer months.

During the summer, clocks in the entire province match those of Calgary and Edmonton. During the winter, clocks in most of the province outside Lloydminster match those of Winnipeg.

In 1912, the first law was passed that called for the use of standard time. This law left the choice of time zone up to the municipal government. The result was a patchwork of towns following either of the two neighbouring time zones (Mountain Standard Time or Central Standard Time) with or without daylight saving time.

During World War I and World War II, all municipalities were forced to adopt daylight saving time to save on fuel, but were not forced to adopt the same time zone.

In 1966, the Saskatchewan Provincial Government sought the help of a professional astronomer living in the province. The Milton Study (Earl R.V. Milton - A submission to the Government of Saskatchewan regarding Time Zones in Saskatchewan, 1966) a) concluded that Saskatchewan is in the Mountain Standard Time Zone, and b) suggested that the three prairie provinces (Alberta, Saskatchewan and Manitoba) covered too much area to share a single time zone.

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