It seems after spending days of testing this plug in, that when an item is set to weekly on a Sunday eg [scheduled weekly="0" time="02:00 PM" length="0:1:0:0"] the shortcode is not working.
I have 6 items that I wish to rotate on daily basis and on weekends for 2 days, all seem to be fine except for the one the starts at 2pm GMT time.
When inspecting the code I can see the countdown time in all other days other than one set on a Sunday.
I tested all a minute apart on a different day and it worked fine Other than this little (Hopefully easily fixed) problem, great plug in.
Feature request would be to have it as widget option for sidebars.