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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.449000 Hipparchic Cycles | to common time units |
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449000 HC | = 4307447376000000 seconds (s) |
449000 HC | = 71790789600000 minutes (min) |
449000 HC | = 1196513160000 hours (hr) |
449000 HC | = 49854715000 days (day) |
449000 HC | = 7122102142.8571 weeks (wk) |
449000 HC | = 136588260.27397 years (yr) |
449000 HC | = 1639059123.2877 months (mo) |
449000 HC | = 13657093.772987 decades (dec) |
449000 HC | = 1365709.3772987 centuries (cent) |
449000 HC | = 136570.93772987 millenniums (mill) |