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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 Sidereal Years (Sy) is equal to 31558149.504 seconds, while 1 Decades (dec) = 315400000 seconds.| 5505806572 Sidereal Years | to common time units |
|---|---|
| 5505806572 Sy | = 1.7375306693928E+17 seconds (s) |
| 5505806572 Sy | = 2.895884448988E+15 minutes (min) |
| 5505806572 Sy | = 48264740816467 hours (hr) |
| 5505806572 Sy | = 2011030867352.8 days (day) |
| 5505806572 Sy | = 287290123907.54 weeks (wk) |
| 5505806572 Sy | = 5509673609.1857 years (yr) |
| 5505806572 Sy | = 66116083310.229 months (mo) |
| 5505806572 Sy | = 550897485.53989 decades (dec) |
| 5505806572 Sy | = 55089748.553989 centuries (cent) |
| 5505806572 Sy | = 5508974.8553989 millenniums (mill) |