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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 Sidereal Years (Sy) is equal to 31558149.504 seconds, while 1 Millenniums (mill) = 31540000000 seconds.| 429000 Sidereal Years | to common time units |
|---|---|
| 429000 Sy | = 13538446137216 seconds (s) |
| 429000 Sy | = 225640768953.6 minutes (min) |
| 429000 Sy | = 3760679482.56 hours (hr) |
| 429000 Sy | = 156694978.44 days (day) |
| 429000 Sy | = 22384996.92 weeks (wk) |
| 429000 Sy | = 429301.31079452 years (yr) |
| 429000 Sy | = 5151615.7295342 months (mo) |
| 429000 Sy | = 42924.686547926 decades (dec) |
| 429000 Sy | = 4292.4686547926 centuries (cent) |
| 429000 Sy | = 429.24686547926 millenniums (mill) |