The calendar must be scientific and accurate!!

Astronomy is the study of astronomical phenomena such as the movement of the sun and the changes in the moon, and is closely related to our life cycle.
And, based on the research results on astronomical phenomena, the calendar is a calendar that calculates the past, present, and even the future by including the solar calendar, lunar calendar, and seasonal calendars necessary for our daily lives.
Therefore, the calendar must be accurate and fit well with our reality.

The focus of 『Easy to Read Saju Manse Ryuk』 is practicality and accuracy.
It is organized so that you can see all the information you need to refer to when studying fortune telling or interpreting your four pillars of destiny at once, and the main content is highlighted in different colors for easy viewing.
All times are calculated using daylight saving time and local standard time, which have been verified through research of numerous domestic sources and daily newspapers.

In the 'Basic Guide to Viewing the Perpetual Calendar' section of this book, the basics of history that you need to know before viewing the perpetual calendar are explained.
For solar calendar, lunar calendar, local standard time, daylight saving time, etc., only the concepts and principles are explained simply, and for the important solar term initiation time and daily cycle when looking for monthly and yearly cycles, the time calculation method necessary to accurately know the local real time is explained in detail.
In addition, the principles of the great fortune, which must be mentioned when discussing the four pillars of destiny, were explained in detail by organizing the calculation method and the great fortune resulting from the calculation into a table.
For those who are new to the perpetual calendar, it will be a good guide to viewing the perpetual calendar, and for those who have not been able to fully utilize the perpetual calendar due to not knowing its principles, it will be helpful in using it.

* Includes a total of 130 years of the calendar
The existing [1921~2030] was expanded to [1921~2050], adding 20 years of the calendar, and increasing the number of pages by 40.