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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.| 1 Gregorian Years | to common time units |
|---|---|
| 1 GY | = 31556952 seconds (s) |
| 1 GY | = 525949.2 minutes (min) |
| 1 GY | = 8765.82 hours (hr) |
| 1 GY | = 365.2425 days (day) |
| 1 GY | = 52.1775 weeks (wk) |
| 1 GY | = 1.0006643835616 years (yr) |
| 1 GY | = 12.00797260274 months (mo) |
| 1 GY | = 0.10005374762207 decades (dec) |
| 1 GY | = 0.010005374762207 centuries (cent) |
| 1 GY | = 0.0010005374762207 millenniums (mill) |