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A decade is a period of 10 years. The word is derived from the Ancient Greek: δεκάς (transliteration=dekas), which means a group of ten. Other words for spans of years also c ..more definition+
In relation to the base unit of [time] => (seconds), 1 Leap Years (ly) is equal to 31622400 seconds, while 1 Decades (dec) = 315400000 seconds.| 90 Leap Years | to common time units |
|---|---|
| 90 ly | = 2846016000 seconds (s) |
| 90 ly | = 47433600 minutes (min) |
| 90 ly | = 790560 hours (hr) |
| 90 ly | = 32940 days (day) |
| 90 ly | = 4705.7142857143 weeks (wk) |
| 90 ly | = 90.246575342466 years (yr) |
| 90 ly | = 1082.9589041096 months (mo) |
| 90 ly | = 9.0235129993659 decades (dec) |
| 90 ly | = 0.90235129993659 centuries (cent) |
| 90 ly | = 0.090235129993659 millenniums (mill) |