Possible performance regression in 9a42cbe85461c28417a5130bc80b035044c5575a
Possible regression in https://github.com/pandas-dev/pandas/commit/9a42cbe85461c28417a5130bc80b035044c5575a

ASV: http://pandas.pydata.org/speed/pandas/index.html#strings.Methods.time_normalize?commits=9a42cbe85461c28417a5130bc80b035044c5575a

A bunch of benchmarks are ~20% slower. Not sure if that was talked about in the issue.

cc @h-vetinari