need to know how many miles before I have to do a timing belt replacement on 1999 Toyota 4Runner

I do have a Toyota 4 runner 1999 SR5, Now I need to find out if it is necessary to have it done a timing belt replacement

Asked by for the 1999 Toyota 4Runner
I would change it around 60,000 mi
1 more answer
I have about 260k miles on my 1999 4Runner. I changed it the timing belt the first time at 80,000 miles and then again at 200,000. The times when I changed it, There were no cracks and very little signs of wear. I plan to change the timing belt again when I hit 300,000.