Fast drying alternative to putty for glazing??

Is there another fast drying product I can use instead of linseed putty?
I need to replace the putty around my second floor windows, but only have the ladder on lone for the next week. This is not enough time for the putty to dry and paint over with white paint.
A white coloured product would be perfect. Thanks

I forgot to mention they are old Victorian wooden windows.

I'm not aware of one but you can usually paint over putty once it's cured a little and formed a skin over the top. I changed a piece of glass in a small window and painted it three days later because I couldn't be bothered waiting any longer - that was three months ago and it's still fine now and the putty is set rock solid.

regards

Fred