Dates in visualization

[ianschuler]

In the example visualization, it is currently unclear what year the data is for. Perhaps this is less of an issue if you are running data up to present day.

Its also unclear if the times are GMT or local to the selected city.

[abarciauskas-bgse]

The issue of year has been resolved by pulling in more data, however we should add the timezone so it's clear what time of day (locally) the data represents.