If you need to keep track of any date, then the date widget is the right one for you.
How to add the phone widget?
Click on the + to add new widget and widget window will open.
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Then click on Date widget to add it
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How to use the date widget?
Once you have added the date widget, simply select a desired date.
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Next to the date there is a globe icon, with differerent colors
Green = Date has not passed
Orange = Date is about to expire
Red = Date expired
Remember: You can rename the widget into anything you would like to, by clicking on the title of it.