1917 (MCMXVII)was a common year starting on Monday of the Gregorian calendar (dominical letter G), the 1917th year of the Common Era (CE) and Anno Domini (AD) designations, the 917th year of the 2nd millennium, the 17th year of the 20th century, and the 8th year of the 1910s decade. Note that the Julian day for 1917 is13 calendar days difference, which continued to be used from 1582 until the complete conversion of the Gregorian calendar was entirely done in 1929.