Yeah as a general guideline I'd say days or weeks... Jazz has had teeth just appear and cut (ok, maybe 2 out of the 12 she now has) but mostly they have taken anywhere from a few days to a few weeks. They move up and down, sometimes they stay just below the surface for ages. it's just hard to tell.

Doog on you for getting an Amber necklace, they made molars SO much easier! They took ages but we barely noticed they were coming!