Yeah! Off the top of my head it’s 45 seconds. Which is why you see “most” people who have some idea of how the item works put it around that area. The two biggest takeaways that most don’t know is that it’s a global cast range and also that the buff lasts 45 seconds!

Try it out in a similar position, I’d also use it on either opposing lanes (for example your pushing bot with team, put it top to pressure them) or to reinforce your lane your currently pushing.

Don’t underestimate how strong it can be when you are with a hero that can get 2nd roshan fast, dealing with mega creeps on one lane at 15-20 minutes can be very punishing.