2102
| Millennium: | 3rd millennium |
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| 2102 by topic |
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2102 (MMCII) will be a common year starting on Sunday of the Gregorian calendar, the 2102nd year of the Common Era (CE) and Anno Domini (AD) designations, the 102nd year of the 3rd millennium, the 2nd year of the 22nd century, and the 3rd year of the 2100s decade.
As of March 1 (O.S. February 19), when the Julian calendar will acknowledge a leap day and the Gregorian calendar will not, the Julian calendar will fall one day further behind, bringing the difference to 14 days.