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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.| 4255903978 Hipparchic Cycles | to common time units |
|---|---|
| 4255903978 HC | = 4.0828691364241E+19 seconds (s) |
| 4255903978 HC | = 6.8047818940401E+17 minutes (min) |
| 4255903978 HC | = 1.1341303156734E+16 hours (hr) |
| 4255903978 HC | = 4.7255429819723E+14 days (day) |
| 4255903978 HC | = 67507756885319 weeks (wk) |
| 4255903978 HC | = 1294669310129.4 years (yr) |
| 4255903978 HC | = 15536031721553 months (mo) |
| 4255903978 HC | = 129450511617.76 decades (dec) |
| 4255903978 HC | = 12945051161.776 centuries (cent) |
| 4255903978 HC | = 1294505116.1776 millenniums (mill) |