Four hours of overlap CAN work but it depends on the overlap. For example, if the rest of the team is working more "normal hours", starting before 10am and you

Four hours of overlap CAN work but it depends on the overlap. For example, if the rest of the team is working more "normal hours", starting before 10am and you don't start until 3pm, that means they can't have the whole team can't have a stand up meeting until 3pm when you get on. End of the day stand up meetings CAN work, but the natural flow is to start the day with it so you can talk about what you WILL be working on today and what you DID work on yesterday, rather than what you think you'll be working on tomorrow. Also, it's hard to ensure the whole team has overlap if the times are too flexible. I have a teammate who starts at 7am, if we had another teammate who wanted to start at 4pm, they would never overlap.