Timer for layers

Question

I have about 16,000 sites of various types in the database. Different terms of the expiration of use. How do I make a countdown timer?

For example: In order for 5 months the polygon changed color to red. Whether it is possible to implement on ArcGIS 10.3.1 or Portal for ArcGIS.

It would be cool to have an automatic notification.

utenalarosa · Answer

I have done something similar to this in AGOL with an Arcade expression. There are a few different date function you can use https://developers.arcgis.com/arcade/function-reference/. It was a combination between using the today function and comparing with the month year of the due date.