As an update, since we’ve still been seeing issues around date formatting, so we’re pursuing another fix that should help: If you’re using Planner within Teams, we will default to using the same language/local as Teams.
If you’re seeing this issue persist outside of Teams and your language/locale is set properly for your Office account, please let us know in the comments below!
The Planner Team
An error occurred while saving the commentDan Saul Knight commented
I have been using O365 Planner and it has become apparent that you may have missed a key piece of information when putting together your requirements. Just to let you know, there are other countries in the world outside of the USA. I have done some investigation and can provide quite a good diagram that demonstrates this.
You can find it here --> http://geology.com/world/world-map.gif
In the other locations on the diagram other than the section marked "USA", the date is written in an ordinate format. This means the variables are listed by the frequency of change. The "day" changes most often, so this is written first. Following that is the "month" and finally the "year".
I am hoping that now you have this information you will be able to add an option to your otherwise excellent Planner software that allows users to select which method of communicating the date they prefer.