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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.| 425000 Sidereal Years | to common time units |
|---|---|
| 425000 Sy | = 13412213539200 seconds (s) |
| 425000 Sy | = 223536892320 minutes (min) |
| 425000 Sy | = 3725614872 hours (hr) |
| 425000 Sy | = 155233953 days (day) |
| 425000 Sy | = 22176279 weeks (wk) |
| 425000 Sy | = 425298.50136986 years (yr) |
| 425000 Sy | = 5103582.0164384 months (mo) |
| 425000 Sy | = 42524.456370323 decades (dec) |
| 425000 Sy | = 4252.4456370323 centuries (cent) |
| 425000 Sy | = 425.24456370323 millenniums (mill) |