How long for "hot water" to become hot again?

[handsome]

I was shaving when I realized I let my hot water run for too long. I'd really like to finish. How long should I expect to wait

[jayboo]

way to many variables for any one to give you an accurate answer on what you posted, apt or house?, what size water heater, gas, electric, ??? maybe 15 mins to 2 hrs?? or use cold, MARY

[rusty JEDI]

Boil a kettle or pot of hot water, put a plug in the sink and pour it in. Just dip your razor into the water and shake it.

Shouldnt take long at all.

rJ

[jakethebake]

How old are you, like 8? Wtf?

[maryfield48]

Rinse your razor in cold water. It contracts the metal, making the edge sharper.