You don't have to wait until 6:00 to use stopwatch with this trick but you will lose the 6:00 use

So in the shop you can buy a stopwatch before 6:00 but you can't use the one you got from your runes because if you use the one you bought that will still count. So go into a game and abuse this awesome mechanic because who wants to wait until 6 minutes? It will set you back 600 gold but it might be worth it for ignite and zed ult so good luck and have fun with this!!!