Every 90,000 mile under normal conditions or every 60,000 miles under severe conditions.
Every 110,000 miles on the V6 and never on the 4 cylinder.
I don't know about 2006, in the 2001 it's at 105k miles
15000 miles
Honda recommends @ 45k miles and then every 30k miles after that.
I recommend every 75,000 miles.
definitely going to have a belt. chains are not used often anymore
Honda recommends changing it at 100,000 miles. I personally recommend you change it every 75,000 miles. The 2003 Honda Accord had problems with the transmission so I would recommend this as a preventative measure.
Every 100,000 miles
You don't as the 2004 Honda CRV uses a timing chain and not a belt. It should last the life of the engine.
Change it every 5 years or 60,000 miles whichever come first.
Every 50,000 miles or 5 years. Read your owners manual maintenance schedule.
Change it every time you change your oil, 3 months or 3000 miles. Every 40,000km. More often under dusty conditions.