how much longer

From the looks of it a while longer. Can't see it clearly enough to know. Are there any red hairs on it?

The picture quality is terrible man. From what I can make out, it looks like your flowers are completely filled in, and I can make out some orange pistils. This leads me to believe you are at least 6-7 weeks into flowering. Until you give us better pics, you aren't going to get a good answer. And if you want a definite answer, invest $15 in a 420 scope and examine your trichomes!!