put a timer on a pink ward

i play jungle a lot. so i have an idea about the pink wards .....i think they should add a timer on pink ward. like when you find an enemy pink ward and you left click on tht pink ward to see when they dropped the ward or how long that pink ward has been placed.sometimes i find the pink ward and dont know how long the pink has been there. because i really want to know that if the pink ward really saw a lot of information for the enemy team. and did they saw me so many times when every time i walked by.