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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.| 4939000000000 Hipparchic Cycles | to common time units |
|---|---|
| 4939000000000 HC | = 4.7381921136E+22 seconds (s) |
| 4939000000000 HC | = 7.896986856E+20 minutes (min) |
| 4939000000000 HC | = 1.316164476E+19 hours (hr) |
| 4939000000000 HC | = 5.48401865E+17 days (day) |
| 4939000000000 HC | = 7.8343123571429E+16 weeks (wk) |
| 4939000000000 HC | = 1.5024708630137E+15 years (yr) |
| 4939000000000 HC | = 1.8029650356164E+16 months (mo) |
| 4939000000000 HC | = 1.5022803150285E+14 decades (dec) |
| 4939000000000 HC | = 15022803150285 centuries (cent) |
| 4939000000000 HC | = 1502280315028.5 millenniums (mill) |