Countdown Widget was updated to address some broken links. Then, I found a minor bug with timezones. After releasing 3.1.6 I found that I have created another bug, so I released 3.1.7 to fix that one too. So, now it should have all up-to-date document links and should work without any issues with timezones.
Do you have any recommendations on Countdown Widget? Leave them in the comments below!