About Xi15

Xi15 is a digital calendar project inspired by the study of Xie Ji Bian Fang Shu, a foundational text of China's imperial calendrical system.

The Xie Ji Bian Fang Shu was an official calendrical manual compiled during the Qing dynasty under imperial authority and later included in the Complete Library of the Four Treasuries (Siku Quanshu). It is widely regarded as one of the most authoritative works in Chinese history on astronomy, calendrical calculation, solar terms, and date selection systems used by the imperial court. Xi15 takes this classic as a core reference, together with other historical calendar texts and modern academic research, to digitally organize and present traditional Chinese timekeeping systems.

Cultural Origins & Academic Background

Compiled during the Qing dynasty, the Xie Ji Bian Fang Shu represents one of the most systematic imperial references for astronomy, calendrical regulation, seasonal cycles, and social time management in traditional China. Its core significance lies in:

• A systematic organization of the Heavenly Stems, Earthly Branches, solar terms, and time divisions
• A summary of how calendrical systems supported ritual, agriculture, and daily life in traditional society
• Providing primary reference material for research in calendrical studies, folklore, and institutional history

When organizing related content, Xi15 follows principles of textual research and historical documentation. By referencing original classical texts, traditional calendrical frameworks, and modern scholarship, the platform presents traditional Chinese time systems in a clear, searchable, and educational digital format.

Our Positioning & Principles

The "Auspicious" and "Inauspicious" labels presented on this site serve only as:

• Historical records of traditional calendrical and folk classifications
• Educational references for understanding ancient time concepts
• Cultural study and leisure reading

All content follows the principles of documented sources + historical context + objective presentation, and should not be used as guidance for real-life decision-making.

Usage Notes & Cultural Statement

• All content on this website is provided solely for learning, research, and cultural reference purposes.
• Information such as "Auspicious," "Inauspicious," fortune indicators, or directional references originates from classical texts and does not represent the platform's viewpoint.
• Users should not rely on this information for major life decisions, including but not limited to marriage, relocation, investment, or medical matters.
• Xi15 assumes no responsibility for any direct or indirect consequences resulting from the use of site content.
• The platform promotes rational thinking and opposes superstition or the misuse of traditional culture.

Core Features of the Website

Xi15 focuses on modernizing traditional calendrical knowledge, including:

Through modern technology, Xi15 aims to transform dispersed classical content into a clear, readable, and searchable digital reference.

Our View on Traditional Culture

Xi15 respects history while embracing modern scientific reasoning, maintaining a clear boundary between cultural documentation and contemporary application.

Conclusion

Xi15 represents an attempt to combine China's ancient calendrical systems with modern digital tools. We hope it becomes:

• An entry point for learning traditional Chinese calendars
• A window into classical institutional and time-based culture
• A rational, research-oriented reference platform