arcgis pro - Creating a large amount of convex polygons using existing coordinates

I downloaded the georeferenced event dataset (top left) from this website: http://ucdp.uu.se/downloads/ It consists of coordinates of violent conflicts which differ in time and space. My aim is to connect the coordinates of one country during the same time (say a month) in a way that it forms a convex area. In other words, I want to create a polygon by connection only the outer coordinates with each other. I want to do this for every country for each time period; therefore, only an automatised process will do.

If you would like to see a picture, you can have a look at the code book of the top right(!) dataset. In case you wonder why I don't simply download the top right dataset: The data is only available until 2010, but I need it until 2014.

I work with the trial version of ArcGIS Pro 1.3

I have worked with ArcGIS before, but this is a few years ago and I used it for quite basic procedures.