Clock & Calendar Designs Blue Moon is an extra full moon in a season Calendar cube puzzle Calendar on my whiteboard shows at least five weeks ahead Calendar strip for my monitor: 18 months but only 5 rows Calendar trick to determine day of the week Clock dial has 120 divisions instead of 60 Dawn should always occur at 000 millidays on our clocks Daylight saving time: government mandates necessary "Day of the week" indicated by a hand on a clock face Days with more than 24 hours?  Why not? Epoch began January 1, 1970 Holidays always fall on Tuesdays? Hour hand should be more distinctive  Hours per day = 24?  No, try hafors per day = 48, and other tweaks Hump Day is rarely a holiday Multiple days may be required to celebrate a holi-day Old year '23 skidoos; let him go Resetting all the clocks and calendars Seasons begin six weeks earlier for Celts Six weeks of winter after February 2?  That's always the case Stopwatches Sundials may have defined "clockwise" Weekly appointment books should have eight days Year numbers, as we age, become harder to remember