This isn't an issue where I've worked; show up whenever, leave whenever, lunch whenever. All a manager needs to ensure is that you're doing your job, and that

This isn't an issue where I've worked; show up whenever, leave whenever, lunch whenever. All a manager needs to ensure is that you're doing your job, and that you aren't a burden on other people. Especially when half of your team may be around the world, it would seem that companies have already written off the importance of what time of day people are available.