Lead to contact converted time

Lead to contact converted time

Hi,

I am using ZOHO CRM and Analytics for the custom reports. 

I've been trying to create a report which gives us information about our Leads to Contacts Conversion by Lead owner - but in some kind of time period (this month, last month...)

I've managed to create a "All time" report, but I don't understand which filter I should use to filter out a relative time period.

Is there anything as "converted time" filter?