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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 Hipparchic Cycles (HC) is equal to 9593424000 seconds, while 1 Decades (dec) = 315400000 seconds.| 1021000000 Hipparchic Cycles | to common time units |
|---|---|
| 1021000000 HC | = 9.794885904E+18 seconds (s) |
| 1021000000 HC | = 1.632480984E+17 minutes (min) |
| 1021000000 HC | = 2.72080164E+15 hours (hr) |
| 1021000000 HC | = 1.13366735E+14 days (day) |
| 1021000000 HC | = 16195247857143 weeks (wk) |
| 1021000000 HC | = 310593794520.55 years (yr) |
| 1021000000 HC | = 3727125534246.6 months (mo) |
| 1021000000 HC | = 31055440405.834 decades (dec) |
| 1021000000 HC | = 3105544040.5834 centuries (cent) |
| 1021000000 HC | = 310554404.05834 millenniums (mill) |