Having 16 hours of sunlight in the summer means the sun is going to be up too early. Both 3:30 am and 4:30 am are way too early for the sun, but such is life. Either way, the sun is up well into the evening, so it's not as if much changed with an hour moved. Except the sleep disturbance; for some, it's no big deal; for others it takes weeks to recover.