Setting “From” Timezone

It would be really useful if there was a way to have the “From” timezone either automatically set to the timezone that the site is set to, or have this be set to a starting timezone by the site admin.

I am using the widget on an online event schedule page where the visitor sees the times of various speakers. The widget is there to help them confirm the time the speech is taking place in their local time zone.

So having the From timezone default to the timezone of the event would make the widget much more user friendly.

Thanks