From what I have read it's from 1-3 hours depending on environment. I recently bought some also but just did one coat due to time of day. Going to reapply another this weekend. It felt as though it could take another coat in 30 minutes but I would wait an hour. It does dry pretty quick.
Thanks for the info. I put on 2 coats yesterday about 2 hours apart (humidity ~15% ). Car looks great so i just put another thin layer on, seems to layer very well and with multiple coats it takes even less BFCS and time for additional coats