A referendum was held in British Columbia on August 30, 1972, simultaneously with a general election.

The referendum was the result of events in Alberta where, in 1971, Albertans voted to enact daylight saving time.

Areas in the Peace River Country and Southeast were economically tied to Alberta, and hence were also on Mountain Time.

In practice, this means that time there is identical with Alberta's in the winter and the rest of BC's in summer.

The southeast is similar, with most of the applicable area on Mountain Time and following DST.