Does the new millennium actually begin on January 1, 2000, or onJanuary 1, 2001?

The new millennium officially begins on January 1, 2001. But, this won't stop people from having their big parties on New Year's Eve, 1999.

The Gregorian calendar, which many people use, measures time from a starting point which was arbitrarily set as the birth of Christ. His birth is set as year 1, not year 0. So the first millennium begins with year 1 and ends with year 1000. The second millennium will last from the beginning of year 1001 to the end of year 2000. This means that the new millennium won't start until the beginning of year 2001.

As a side note, year 2000 is a leap year. An extra day is added every four years, except for each century. For each century, the year has to be divisible by 400 instead of just 4. That means that 2000 will be a leap year but that 1900 wasn't.

Submitted by Jeremy (Tennessee, USA)
(September 9, 1997)

Windows to the Universe Community



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