One foot |
1.0 nanosecond |
One metre |
3.3 nanoseconds |
One km |
3.3 microseconds |
One mile |
5.4 microseconds |
Around Earth's equator |
0.13 seconds |
From Earth to geostationary orbit and back |
0.24 seconds |
From Earth to the moon |
1.3 seconds |
From Earth to the sun |
8.3 minutes |
To Earth from Alpha Centauri |
4.4 years |
From edge to edge of the Milky Way |
100,000 years |