It's best not to postpone the return, because it won't be easy to borrow it next time. As the saying goes, it is not difficult to borrow again when you have it, but there is no way. Don't delay it too long. Besides, you'd better explain it to others and apologize when you return it. I guess it's not a big problem. I've put it off before, but it's only 1, and two days is nothing.