How can i find the quantitiy of product in my list that was used in a given time?

Good day, redrosecenter,

You'll want to run the Sales by Product/Service Summary report. You can customize the report as well to your preferred period.

1. Click Reports on the left pane.
2. On the Search box, type Sales by Product/Service Summary.

Check this article on reports customization: Customize reports in QuickBooks Online.

I'll be right here if you have more questions.