Daylight Tracker

When the sun is up, on your clock

Each day is a thin vertical slice: amber is sunrise to sunset, blue is twilight. Watch the band shrink toward the winter solstice and jump an hour at each clock change. Tap or drag across the chart for any day.

Hours of daylight, and how fast it's changing

The curve is total daylight. The bars underneath show minutes gained or lost compared with the day before: the change is fastest around the equinoxes and slows to almost nothing at the solstices.

Key dates for the next year