Date and Astronomy Calculators

Date Calculators

  Time and date duration – Calculate between exact times (not just dates)

  Date calculator – add or subtract days, months, years

  Birthday calculator – Find when you are 1 billion seconds old

Astronomy calculators

  Moon Calculator – find times for moonrise, moonset and more

  Moon Phase Calculator – Calculate Moon Phases for any year

  Sunrise Calculator – find times for sunrise, sunset and more

  Day and Night World Map – See which parts of the Earth are currently illuminated by the Sun