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Convert Decade (decade) to Novennial (9 years) instantly.

About these units

Decade (decade)

A decade spans 10 years and is widely used in demography, sociology, climatology, economics, and culture. Statistical studies often examine decade-level patterns—population change, economic cycles, consumer trends, cultural shifts, and generational studies. Climate scientists assess long-term temperature and precipitation changes over decades to filter out short-term variability. Decades also anchor cultural memory: the "60s," "80s," or "2000s" evoke distinct historical moods, fashions, and political climates. A decade, though arbitrary in length, has become a meaningful cultural and scientific periodization tool.

Novennial (9 years)

A novennial period, or nine-year span, is used in long-term statistical tracking, education planning, psychological developmental models, and ceremonial cycles. Some ancient cultures used nine-year intervals for festivals or social rites, reflecting the symbolic significance of the number nine in mythology and numerology. Modern research sometimes employs nine-year windows for smoothing data or tracking developmental milestones that do not align neatly with decades.

More Decade converters

Decade [decade] ↔ Second [s]
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Decade [decade] ↔ Minute [min]
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Decade [decade] ↔ Hour [h]
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Decade [decade] ↔ Day [d]
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Decade [decade] ↔ Week [week]
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Decade [decade] ↔ Month [month]
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Decade [decade] ↔ Year [y]
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Decade [decade] ↔ Millisecond [ms]
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Decade [decade] ↔ Microsecond [µs]
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Decade [decade] ↔ Nanosecond [ns]
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Decade [decade] ↔ Picosecond [ps]
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Decade [decade] ↔ Femtosecond [fs]
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Decade [decade] ↔ Attosecond [as]
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Decade [decade] ↔ Century [century]
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Decade [decade] ↔ Millennium [millennium]
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Decade [decade] ↔ Shake [shake]
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Decade [decade] ↔ Planck Time [tₚ]
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Decade [decade] ↔ Month (Synodic) [month (synodic)]
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Decade [decade] ↔ Year (Julian) [y (Julian)]
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Decade [decade] ↔ Year (Leap) [y (leap)]
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Decade [decade] ↔ Year (Tropical) [y (tropical)]
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Decade [decade] ↔ Year (Sidereal) [y (sidereal)]
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Decade [decade] ↔ Day (Sidereal) [d (sidereal)]
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Decade [decade] ↔ Hour (Sidereal) [h (sidereal)]
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Decade [decade] ↔ Minute (Sidereal) [min (sidereal)]
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Decade [decade] ↔ Second (Sidereal) [s (sidereal)]
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Decade [decade] ↔ Fortnight [fortnight]
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Decade [decade] ↔ Septennial [7 years]
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Decade [decade] ↔ Octennial [8 years]
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Decade [decade] ↔ Novennial [9 years]
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Decade [decade] ↔ Quinquennial [5 years]
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Decade [decade] ↔ Quindecennial [15 years]
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Convert Decade to Novennial