We have just published a paper on adapting to time:
William Curran; Christopher P. Benton; Julie M. Harris; Paul B. Hibbard; Lee Beattie (2016) Adapting to time: duration channels do not mediate human time perception. Journal of Vision March 2016, Vol.16, 4. doi:10.1167/16.5.4.
The publication is free to view here.