simple use cclock component add days or months or year as you like
In date picker i have picked this date
If not pls elaborate what you want? If you have the dates in database, and want to show like days ago, months ago or yeasr agao mean, just det the date difference between stored date in db and conrrent date then use mathematical calcu to show it as you like
for more ref this guide [Guide] How to use the CLOCK