How may days it take for approval?

Capture

It’s been 14 days and still showing me Queued for Review.

by what time it approves the item.

Hi,

Actually impossible to say as there is no guaranteed review time, but your item should be reviewed as soon as possible. You can often refer to the average review times at the link below as a guideline, but these are just averages and the actual review time could be few days shorter or longer than those listed:
https://quality.market.envato.com/codecanyon

Thanks