Our Story

The MONAD Calendar-Clock has been in development since 2006.¬† The idea for a Planetary Calendar-Clock first came to Dr. Whitten as he was working on an illustration for a book (Owner’s Manual) where he was describing the impact the 4 seasons have on our physiology. Over the years, he has built various Calendar-Clock models, both real and virtual. The first prototype version of the MONAD Stage 1 App (called C4 or Civil-Celestial Calendar-Clock) was uploaded to the App Store September 21, 2018.¬† The current version, MONAD Stage 2, was uploaded August 6, 2019.

Our Approach

We believe the single most important feature of MONAD, the Planetary Celendar-Clock, is that it puts the Earth back at the center of our collective attention and awareness.  Everyone needs to thoroughly understand the responsibilities that come to interdependent individuals aware they are living on a living planet with a shared biosphere.

Meet the MONAD Team

We won’t stop developing MONAD until it meets all your needs for recording and scheduling events, and is capable of demonstrating every aspect of planetary space-time, from eclipses to precession of the nodes.

Keith W. Whitten, M.D.

Author & Inventor.

Keith Whitten is a psychiatrist, specializing in disability evaluations for the past 25 years.  His fascination with time started with an effort to understand the circadian rhythms that inform our own physiology.  He has been designing and building the Calendar-Clock since 2006.

Early 2014 he started working with Jim Rodney, putting together various animations and early prototypes.  He first met with Thomas Spellman October 2017 and this MONAD app is the first working Planetary Calendar-Clock.

James Rodney

3D Model Builder & Animator.

The first Calendar-Clock animation was completed April 2014. It was 72 seconds long and showed two years of activity, just the Earth, Sun, Moon and celestial sphere with no planets. The Calendar-Clock has come a long way since then, and James has been there every step of the way, building numerous 2-D and 3-D models and prototypes which he has animated over the years.

Thomas Spellman


When Dr. Whitten first started seriously thinking about the programming, he was convinced that “a room full of programmers, maybe NASA,” would be required to get everything done. Turns out just one programmer was all it took.

Wesley Whitten

When Keith first started working on these ideas that turned into the Calendar-Clock, he bought his father, Wesley, a copy of his favorite astronomy book, the Larouse Encyclopedia of Astronomy, so they could discuss it together.

Wesley was instrumental in all stages of development, especially at convincing Keith that a calendar band could be made reflecting the elliptical orbit of the Earth around the Sun.  Wesley provided the data to create the first accurate calendar band reflecting these ideas, the so called “ellipse template.”

Jean Meeus

Jean Meeus is the author of a world famous collection of Astronomical Algorithms available for free on the internet.  He also has published a book by the same name, explaining these algorithms, which serve as the motor driving all of the astronomical activity taking place on the MONAD Calendar-Clock.

Eduardo Santana

Eduardo Santana is the creator of Cosmic-Watch, a fantastic astronomical app that when Dr. Whitten first saw it, just about knocked him out it was so beautiful.  Eduardo was extremely generous with his advice and first brought the Astronomical Algorithms of Jean Meeus to Dr. Whitten’s attention.

John Riesenman, M.D.

John Riesenman was Keith’s mentor in medical school and remains one of his closest friends.  The Calendar-Clock was first described in Owner’s Manual, Human Vehicle, a book Dr. Whitten completed December 2012.  John was the editor of that book and Dr. Whitten’s main scientific peer, providing irreplaceable feedback and discussion over the course of 15 years it took to write that book.  The Calendar-Clock wouldn’t exist without his considerable help.

Albert Schwarzer

Albert Schwarzer is one of Dr. Whitten’s closest friends, since the 8th grade, and has been involved as business advisor and investor and has helped keep Keith afloat both mentally and financially over the years.

Eric Tomb

I first met Eric 27 years ago at one of his many book stores and over the years I bought and traded more books with him than any of his other customers. Eric also read and reviewed two books I wrote and when I started designing and building the MONAD Calendar-Clock, and giving Talks on the subject, he attended all of them. About 4 years ago I was looking for a programmer and he recommended and introduced me to Thomas Spellman. A few months ago Eric offered to make me a video explaining and promoting MONAD and here it is: MONAD vs. PRAGUE.