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A millennium (plural millennia or millenniums) is a period of time equal to 1000 years, also called kiloyears. It derives from the Latin mille, thousand, and annus, year. ..more definition+
In relation to the base unit of [time] => (seconds), 1 Gregorian Years (GY) is equal to 31556952 seconds, while 1 Millenniums (mill) = 31540000000 seconds.| 12 Gregorian Years | to common time units |
|---|---|
| 12 GY | = 378683424 seconds (s) |
| 12 GY | = 6311390.4 minutes (min) |
| 12 GY | = 105189.84 hours (hr) |
| 12 GY | = 4382.91 days (day) |
| 12 GY | = 626.13 weeks (wk) |
| 12 GY | = 12.00797260274 years (yr) |
| 12 GY | = 144.09567123288 months (mo) |
| 12 GY | = 1.2006449714648 decades (dec) |
| 12 GY | = 0.12006449714648 centuries (cent) |
| 12 GY | = 0.012006449714648 millenniums (mill) |