parsing timezones, not working as expected, one way around it?

there is a setting: **localtime: false**,
this suppose to make difference in parsing dates
there is example of this here:
http://c3js.org/samples/axes_x_localtime.html
BUT
for me it works in wrong, **opposite direction**.
for example, for utc time: '2016-10-04T18:31:20.000Z', it should be 20h, but the result is 16h