Seventh Day Adventist teachings on the Sabbath are of course based on the shift from the Roman Catholic Church's use of the Julian calendar to the Gregorian one.
Garcia, a civil engineer by profession who works at the City Engineer's Office, always talks in his lectures about how Pope Gregory XIII dropped 10 days from the Julian calendar to form his own Gregorian calendar.
The dropping of the 10 days was conformed to new evidence about the accurate time of the Earth's one-year revolution of the sun.
However, Garcia could not expound on his lectures on how Pope Gregory XIII arrived in 1582 the 10-day annulment formula to offset for "additional time" used under the Julian calendar.
The Julian calendar counts 365.25 days as the Earth's revolution to the sun.
But new scientific evidence in 1582 came out stating that the Earth's actual revolution to the sun is only 365.242199 days or less than 0.0078009 day per year if one uses the Julian calendar.
From the time, the Julian calendar was introduced up in 46 BC up to the 1582, a total of 1,628 years have elapsed.
Yet Garcia could not understand how Pope Gregory XIII came up with the 10-day annulment.
That was Garcia's obsession since the 1980s. Since then, he has been researching in libraries as well as the Internet on the subject matter.
Over three decades of research, Garcia is now ready to present a compendium of his research.
He is planning to put up a book, initially titled as The Free-Running Week, to explain on how Pope Gregory XIII arrived at his computation.
"I named the book as such to underscore that the changes of the calendar did not in any way interfere the days of the week," he said.
Garcia is planning to sell his book at all Seventh Day Adventist churches all over the country at P300 per copy.
The Free-Running Week will be released in 2009. (MDF)
