Welcome to

Light on Time


This is a blog for astrology enthousiasts who want to learn about the cycles of the giant planets Jupiter, Saturn, Uranus and Neptune, and how they resonate with our present moment, the milestones of history and the biographies of extraodinary people.

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The patterns of the Jupiter, Saturn, Uranus and Neptune cycles

The cycles of Jupiter, Saturn, Uranus and Neptune, the stellia when they meet in the sky and their alignments within each cycle are the essential patterns that can be correlated to History and personal stories.


Our articles about the history of Maritime Empires, World War II and the history of computers use planetary cycles as a meaningful framework to study History and to understand the zeitgeist of pivotal years such as 1917, 1940-41, 1989 and 2020-21.

Life stories

The lives of F.D. Roosevelt, Emperor Hirohito and Steve Jobs illustrate how life milestones correlate to the intertwined cycles of the giant planets through the birth chart and how the biographies of extraordinary people resonate with pivotal moments in History.


These pages are dedicated to the memory of my father Rafael, who taught me his love for labyrinths.