Photography, tides and astronomy
in one clear view.
5 calculators in this category · Browse by topic or open a tool directly.
Golden Hour Blue Hour Window Calculator
Calculate blue-hour and golden-hour windows from date, coordinates and visible solar-angle bands. Inputs stay in your browser.
CalculatorHiking Daylight Turnaround Calculator
Derive local sunset, test both hike legs and set a latest turnaround with a daylight buffer. Inputs stay in your browser.
CalculatorStargazing Dark Sky Moon Window
Find astronomical darkness and the longest moon-below-horizon observing window for a location. Inputs stay in your browser.
CalculatorTide Window Calculator For Fishing
Load NOAA high/low predictions for a real station and build transparent trip-planning windows around selected turning points. Inputs stay in your browser.
CalculatorMoon Phase Next Full Moon Calculator
See the current calculated moon phase, illumination and local countdowns to the next full and new moon from one explicit UTC offset. Inputs stay in your browser.
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