When business hours are off by one hour, there is one hour less to communicate with your neighboring countries during business hours. If you had an eight-hour

When business hours are off by one hour, there is one hour less to communicate with your neighboring countries during business hours. If you had an eight-hour work day, a one-hour time offset from a neighboring country would mean you overlap with them for seven hours, and they overlap with you for seven hours. One of you loses an hour off the beginning of your day, and the other loses an hour off the end, but that does not add up to a loss of two hours. This is especially obvious when you have an eight hour workday with an eight hour time zone offset. That does not mean you have sixteen hours less communication time.