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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.| 442000 Sidereal Years | to common time units |
|---|---|
| 442000 Sy | = 13948702080768 seconds (s) |
| 442000 Sy | = 232478368012.8 minutes (min) |
| 442000 Sy | = 3874639466.88 hours (hr) |
| 442000 Sy | = 161443311.12 days (day) |
| 442000 Sy | = 23063330.16 weeks (wk) |
| 442000 Sy | = 442310.44142466 years (yr) |
| 442000 Sy | = 5307725.2970959 months (mo) |
| 442000 Sy | = 44225.434625136 decades (dec) |
| 442000 Sy | = 4422.5434625136 centuries (cent) |
| 442000 Sy | = 442.25434625136 millenniums (mill) |