Rated 4 out of 5 stars

This is great, helpful and fits in the browser nicely. The only thing is the times you set start and finish could be 15 mins instead of in hour slots.

This review is for a previous version of the add-on (1.7). 

Hi there. You can select 15 minute increments from the sub-menu items that show for each hour slot. Additionally, you can type in any time (hours, minutes) that you want into the start/end times. Hope that helps. Tom