Convert Fortnight (fortnight) to Decade (decade) instantly.
About these units
Fortnight (fortnight)
A fortnight is 14 days, a unit deeply rooted in English tradition. Its name derives from "fourteen nights," reflecting a time when day-to-day life was measured in nights rather than hours or minutes. Fortnights appear in literature, wage schedules, agricultural cycles, and even modern payroll systems in some countries. Though not part of the SI system, the fortnight persists because it occupies a natural middle ground: longer than a week, shorter than a month, yet easily divisible and memorable.
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.