The Devil
Look in your owner's manual for that. It varies 60,000-90,000 miles
JetDoc
READ the owner's manual that came with the car. There will be a whole chapter on maintenance and a written schedule for when maintenance should be done.
thebax2006
90,000 miles. I'd make sure all the timing belt components such as the idler and tensioner pulley and the hydraulic tensioner also get changed.
Replace the water pump while changing the timing belt.
Bill
Check your owners manual to see if your car has a cam belt. If the engine doesn't have an overhead cam, it probably has a timing chain which usually lasts as long as the engine.
Anonymous
The owner's manual will have the information on that. 60k to 90k miles or 7 years is the norm.