listing time zone options that automatically disables seasonal clock changes for Daylight Saving. In the tz database, both the America/Regina and America/Swift_Current entries result in Saskatchewan time. The current wording of the Time Act dictates "Central standard time shall be used and observed throughout the year", which is defined to be "the time that is six hours behind Greenwich time". With respect to mean solar time, however, this translates into Saskatchewan effectively being on Daylight Saving Time year-round. In the map above, Saskatchewan is the rectangle of Central Standard Time protruding into Mountain Standard Time in Canada, visually displaying that geographically, Saskatchewan is in the Mountain Time Zone. See also Time in Canada Time in Arizona References The Saskatchewan Time System Saskatchewan Ministry of Municipal Affairs Daylight saving time in Canada Time in Canada