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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 Millidays (md) is equal to 86.4 seconds, while 1 Decades (dec) = 315400000 seconds.| 199000 Millidays | to common time units |
|---|---|
| 199000 md | = 17193600 seconds (s) |
| 199000 md | = 286560 minutes (min) |
| 199000 md | = 4776 hours (hr) |
| 199000 md | = 199 days (day) |
| 199000 md | = 28.428571428571 weeks (wk) |
| 199000 md | = 0.54520547945205 years (yr) |
| 199000 md | = 6.5424657534247 months (mo) |
| 199000 md | = 0.054513633481294 decades (dec) |
| 199000 md | = 0.0054513633481294 centuries (cent) |
| 199000 md | = 0.00054513633481294 millenniums (mill) |