1902 (MCMII) was a common year starting on Wednesday of the Gregorian calendar and a common year starting on Tuesday of the Julian calendar, the 1902nd year of the Common Era (CE) and Anno Domini (AD) designations, the 902nd year of the 2nd millennium, the 2nd year of the 20th century, and the 3rd year of the 1900s decade. As of the start of 1902, the Gregorian calendar was 13 days ahead of the Julian calendar, which remained in localized use until 1923.