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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 Sidereal Years (Sy) is equal to 31558149.504 seconds, while 1 Millenniums (mill) = 31540000000 seconds.| 8021413550 Sidereal Years | to common time units |
|---|---|
| 8021413550 Sy | = 2.5314096804431E+17 seconds (s) |
| 8021413550 Sy | = 4.2190161340719E+15 minutes (min) |
| 8021413550 Sy | = 70316935567864 hours (hr) |
| 8021413550 Sy | = 2929872315327.7 days (day) |
| 8021413550 Sy | = 418553187903.95 weeks (wk) |
| 8021413550 Sy | = 8027047439.2539 years (yr) |
| 8021413550 Sy | = 96324569271.047 months (mo) |
| 8021413550 Sy | = 802602942.43599 decades (dec) |
| 8021413550 Sy | = 80260294.243599 centuries (cent) |
| 8021413550 Sy | = 8026029.4243599 millenniums (mill) |