Alberta operates on Mountain Standard Time (MST) during winter months, which is 7 hours behind Coordinated Universal Time (UTC-7). During daylight saving time, observed from the second Sunday in March to the first Sunday in November, Alberta switches to Mountain Daylight Time (MDT), which is UTC-6.
All of Alberta follows the same timezone. Major cities including Calgary, Edmonton, Red Deer, and Lethbridge all observe MST/MDT. Alberta shares the same timezone as the U.S. Mountain states including Colorado, Utah, and Arizona (during winter).
Alberta is home to the Canadian Rockies and two of Canada's most famous national parks: Banff and Jasper. The province is also Canada's largest oil producer and hosts the Calgary Stampede, one of the world's largest outdoor rodeos, every July.