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A year is the orbital period of the Earth moving in its orbit around the Sun. In astronomy, the Julian year is a unit of time; it is defined as 365.25 days of exactly 86400 seconds (SI base unit), totalling exactly 31557600 seconds in the Julian astronomical year.
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 Years (yr) is equal to 31536000 seconds, while 1 Decades (dec) = 315400000 seconds.| 1 Years | to common time units |
|---|---|
| 1 yr | = 31536000 seconds (s) |
| 1 yr | = 525600 minutes (min) |
| 1 yr | = 8760 hours (hr) |
| 1 yr | = 365 days (day) |
| 1 yr | = 52.142857142857 weeks (wk) |
| 1 yr | = 1 years (yr) |
| 1 yr | = 12 months (mo) |
| 1 yr | = 0.09998731769182 decades (dec) |
| 1 yr | = 0.009998731769182 centuries (cent) |
| 1 yr | = 0.0009998731769182 millenniums (mill) |
| Years | to Decades (table conversion) |
|---|---|
| 1 yr | = 0.09998731769182 dec |
| 2 yr | = 0.19997463538364 dec |
| 3 yr | = 0.29996195307546 dec |
| 4 yr | = 0.39994927076728 dec |
| 5 yr | = 0.4999365884591 dec |
| 6 yr | = 0.59992390615092 dec |
| 7 yr | = 0.69991122384274 dec |
| 8 yr | = 0.79989854153456 dec |
| 9 yr | = 0.89988585922638 dec |
| 10 yr | = 0.9998731769182 dec |
| 20 yr | = 1.9997463538364 dec |
| 30 yr | = 2.9996195307546 dec |
| 40 yr | = 3.9994927076728 dec |
| 50 yr | = 4.999365884591 dec |
| 60 yr | = 5.9992390615092 dec |
| 70 yr | = 6.9991122384274 dec |
| 80 yr | = 7.9989854153456 dec |
| 90 yr | = 8.9988585922638 dec |
| 100 yr | = 9.998731769182 dec |
| 200 yr | = 19.997463538364 dec |
| 300 yr | = 29.996195307546 dec |
| 400 yr | = 39.994927076728 dec |
| 500 yr | = 49.99365884591 dec |
| 600 yr | = 59.992390615092 dec |
| 700 yr | = 69.991122384274 dec |
| 800 yr | = 79.989854153456 dec |
| 900 yr | = 89.988585922638 dec |
| 1000 yr | = 99.98731769182 dec |
| 2000 yr | = 199.97463538364 dec |
| 4000 yr | = 399.94927076728 dec |
| 5000 yr | = 499.9365884591 dec |
| 7500 yr | = 749.90488268865 dec |
| 10000 yr | = 999.8731769182 dec |
| 25000 yr | = 2499.6829422955 dec |
| 50000 yr | = 4999.365884591 dec |
| 100000 yr | = 9998.731769182 dec |
| 1000000 yr | = 99987.31769182 dec |
| 1000000000 yr | = 99987317.69182 dec |