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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 Atomic Unit Of Time (au) is equal to 2.418884254E-17 seconds, while 1 Millenniums (mill) = 31540000000 seconds.| 21500 Atomic Unit Of Time | to common time units |
|---|---|
| 21500 au | = 5.2006011461E-13 seconds (s) |
| 21500 au | = 8.6676685768333E-15 minutes (min) |
| 21500 au | = 1.4446114294722E-16 hours (hr) |
| 21500 au | = 6.0192142894676E-18 days (day) |
| 21500 au | = 8.5988775563823E-19 weeks (wk) |
| 21500 au | = 1.6490998053336E-20 years (yr) |
| 21500 au | = 1.9789197664003E-19 months (mo) |
| 21500 au | = 1.6488906614141E-21 decades (dec) |
| 21500 au | = 1.6488906614141E-22 centuries (cent) |
| 21500 au | = 1.6488906614141E-23 millenniums (mill) |