Jake Vanderplas

Once the offset encoding is available, this will be easier. I think that should be in Altair once #2528 is merged and released.

This is a timezone/date parsing issue in Javascript. You need your date strings to be fully-qualified ISO 8601 date strings, or Javascript will parse them as UTC rather than local...

Yeah, it might be worth adding this in a FAQ or a "gotchas" page.

Here's a similar issue in the Altair repo: https://github.com/altair-viz/altair/issues/2077

You probably don't want `utc=True`. If you do, then you should use UTC timeunits in your chart as well. (also, just in case this is an area of confusion: `pd.to_datetime`...

No, there's no easy way to do that at the moment. If you write a custom javascript frontend, it is theoretically possible via the [vega view](https://github.com/vega/vega-view) api, but I don't...

Yes, it would be nice, and no, there is still no way to do this, because the selection happens in the Javascript layer and there is no mechanism for the...

Agreed this would be very nice to have. Note that the Streamlit developers have created a solution that works on their frontend. Nobody has yet stepped-up to create a more...

You would need a vega-lite 5 extension installed on either jupyterlab or notebook, and I don't think that exists yet for either frontend. It's also hard to create it before...

No, it's not possible in Altair. I believe it's possible in newer versions of Vega-Lite via the signals API, but Altair does not yet support this.