[time issue resolved, I see how that works now]
When I just signed up for a conversation, the screen was blocked by my notification, which I couldn’t see a way to close. So I closed the tab.
Yes, As you have figured out the time zone is a setting on the settings page. You choose the time zone you are in and conversation times will be displayed in that time zone.
We have added a way to close that conversation pop up which will be included in our next update.
Thanks! 