I wonder why exactly 5am? I know that it is good to wake up with sunrise, but sun not always rise at 5am. Moreover, in the USA, Canada and in the most contries in Europe there is so called daylight saving time (DST) when the local time shifts 1 hour forward during summer time. So if you wake up at 5am in the winter, you will have to wake up at 4am in the summer! It is so hard for me to wake up when there is still dark outside...
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