gnomon

A pin stands on level ground. Choose a place, a date and a time to see where the sun stands, where the pin's shadow falls, and the curves the shadow tip draws through the day and the year.

Sky, seen from above

selected day June solstice equinoxes December solstice same clock hour all year

Ground around the pin (rings at 1, 2, 3… pin heights)

shadow now tip today tip at each clock hour through the year

Daylight through the year, by the clock

sun up solar noon selected date and time (click to move)

A sundial to print

A horizontal dial for this place and clock, with hour lines shifted for the distance to the zone meridian, a gnomon to cut out, and the equation-of-time corrections that turn the dial reading into clock time. Print at 100% on A4 paper.