Laser Beam

At what speed does a Laser beam get projected out of a laser? In seconds or femto seconds?

For my project, I am required to find how fast a laser beam is projected from a laser when you turn on the laser (Co2 lasers). I've been looking it up but I can't seem to find it :(

Aparently it's in femto seconds, but I still don't know where to find the exact value..
If someone knows where I can find it, with a provided link that would be just great!
Thanks in advance!

it moves at the speed of light. If the laser is in air, the speed is 299,704,600 m/s
if it moves through a glass container or window first, the speed is a bit slower, see below.

to move 1 meter in air it takes (1/299,704,600) s = 3.34e-9 ns

Speed of light
299,792,458 meters per second in vacuum
299,704,600 meters per second in air
224,900,000 meters per second in water
about 200,000,000 m/s in glass

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