10th millennium

Millennia:	9th millennium 10th millennium 11th millennium
Centuries:	91st century 92nd century 93rd century 94th century 95th century 96th century 97th century 98th century 99th century 100th century

The tenth millennium of the Gregorian calendar will begin on January 1, 9001, and end on December 31, 10000. It will be the tenth millennium in the Anno Domini or Common Era.

All these dates are in a uniform time scale such as Terrestrial Time. When converted to our ordinary solar time or Universal Time, which is decidedly non-uniform, via ΔT, the dates would be a couple of days earlier. Furthermore, they are only astronomical dates, so they are given in the astronomical format of Year Month Day, which allows them to be ordered.

Software that encodes the CE / AD calendar year of a date as a four-character binary-coded decimal will no longer be able to encode the contemporaneous date.

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