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The galactic year, or cosmic year, is the duration of time required for the Sun to orbit once around the center of the Milky Way Galaxy. Estimates of the length of one orbit range from 225 to 250 million terrestrial years.
In relation to the base unit of [time] => (seconds), 1 Hipparchic Cycles (HC) is equal to 9593424000 seconds, while 1 Galactic Years (gal) = 7.25328E+15 seconds.| 212400 Hipparchic Cycles | to common time units |
|---|---|
| 212400 HC | = 2037643257600000 seconds (s) |
| 212400 HC | = 33960720960000 minutes (min) |
| 212400 HC | = 566012016000 hours (hr) |
| 212400 HC | = 23583834000 days (day) |
| 212400 HC | = 3369119142.8571 weeks (wk) |
| 212400 HC | = 64613243.835616 years (yr) |
| 212400 HC | = 775358926.0274 months (mo) |
| 212400 HC | = 6460504.9384908 decades (dec) |
| 212400 HC | = 646050.49384908 centuries (cent) |
| 212400 HC | = 64605.049384908 millenniums (mill) |