Green tomatoes

I have had only about 4 ripe tomatoes from my plants but have loads of green ones still on there, looking very healthy.

Are they likely to go red now or should I make a chutney or marmalade from them.

And if I am going to make a chutney from them, how long can I keep them on the plant for as I know that I won't have time to make it until at least next Sunday.

Oh - thanks for that.

Will get the kids munching on some bananas then.