local time zone for clockmap

[Thomas Lecocq]

[Víctor H. Márquez]

Hi,

I think something similar in clockplots

data[main] = localize_tz_and_reindex(data[main], "30Min")

It would have to be

data[main] = localize_tz_and_reindex(data[main], "30Min", time_zone)

[Fred Massin]

There a PR fixing this.