In the AWW #227 February 2023 issue I presented a range of wooden perpetual calendars that offered different levels of challenge for the woodworker. In all cases the calendars had to be adjusted each day, or once a month, to maintain the correct day,date and month throughout the year.The need for these adjustments may suit many users, as a way of managing a daily or monthly routine at home or in the office. For others, however, it may just be too tedious and they will simply prefer to rely on their mobile phone for all the information needed (and more) to provide the owner with the date and time.
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