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A millennium (plural millennia or millenniums) is a period of time equal to 1000 years, also called kiloyears. It derives from the Latin mille, thousand, and annus, year. ..more definition+
In relation to the base unit of [time] => (seconds), 1 Millidays (md) is equal to 86.4 seconds, while 1 Millenniums (mill) = 31540000000 seconds.| 18 Millidays | to common time units |
|---|---|
| 18 md | = 1555.2 seconds (s) |
| 18 md | = 25.92 minutes (min) |
| 18 md | = 0.432 hours (hr) |
| 18 md | = 0.018 days (day) |
| 18 md | = 0.0025714285714286 weeks (wk) |
| 18 md | = 4.9315068493151E-5 years (yr) |
| 18 md | = 0.00059178082191781 months (mo) |
| 18 md | = 4.9308814204185E-6 decades (dec) |
| 18 md | = 4.9308814204185E-7 centuries (cent) |
| 18 md | = 4.9308814204185E-8 millenniums (mill) |