Everybody in Germany and most of the rest of Europe, too. There are exceptions but generally not for your run-of-the-mill techy. And even if you work whenever you like, your employer is obligated to show that you worked no more than is allowed by law. (That's the purpose of time recording, protect the worker from too much overtime.)
How you do that differs, but there are companies that run clock-systems for that -- many of them are coupled to the access control systems of your office/factory, so when you use your ID card to enter the building, you automatically clock in. Others require you to maintain timesheets in one system or the other.
How reliable these systems reflect how much time you actually worked is up to debate, but as employer you get into serious trouble if you don't have them.