about 10 minutes
About up to an hour at max
Reboot means restart. It does take awhile in the Jail breaking process.
will the fantastic four reboot take place in the same universe with the x men film series
The time it takes for an OBD (On-Board Diagnostics) system to reboot can vary depending on the vehicle and the specific issue being addressed. Generally, a reboot can take anywhere from a few seconds to a couple of minutes. If you are clearing trouble codes or resetting the system, it typically requires only a short period. However, if there are underlying issues, further diagnostics may be necessary, extending the overall time required.
i am guessing you are trying to jailbreak your device. it can all depend upon each device but it shouldn't take to long. My suggestion, if possible don't jailbreak with redsnow, try jailbreaking with greenpois0n or limera1n. hope this helps :)
Take the CD out of the drive.
half an our
The original (made in 1984) is 126 minutes long and the reboot (made in 2010) is 140 minutes long.
this will take 450 to 500 yrs
instantly
never
Reboot. It can take a while, but it shouldn't take 3 hours, much less 3 days.