luismi Hi
1) You can go to /templates/ja_company/acm/timeline/tmpl/style-1.xml and change the option of rendering calender picker to text by changing this :
<item name="date" type="calendar" default="" label="TIMELINE_DATE_LABEL" description="TIMELINE_DATE_DESC" />
to
<item name="date" type="text" default="" label="TIMELINE_DATE_LABEL" description="TIMELINE_DATE_DESC" />
2) Thereon, You can add year in the text fields in module parameters. Ref: Screenshot and click on save to have the same reflected