1752 (MDCCLII) was a leap year starting on Saturday of the Gregorian calendar and a leap year starting on Wednesday of the Julian calendar, the 1752nd year of the Common Era (CE) and Anno Domini (AD) designations, the 752nd year of the 2nd millennium, the 52nd year of the 18th century, and the 3rd year of the 1750s decade. As of the start of 1752, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923. In the British Empire, it was the only year with 355 days, as September 3–13 were skipped when the Empire adopted the Gregorian calendar.