Question 1

Why does the 2026 Grain in Ear solar term appear on June 6 in your calendar, while many other calendars show it on June 5?

Accepted Answer

The exact civil Gregorian time of the 2026 Grain in Ear solar term is June 5, 2026, at 23:48. Our calendar applies the traditional Zi-hour day-change rule: for both the Gan-Zhi calendar and the lunar calendar, the day changes at Zi hour (23:00). The solar term therefore belongs to the Xin-Hai day, Wu-Zi hour, and the 21st day of the fourth lunar month. The monthly calendar grid prioritizes the traditional calendrical position while preserving the exact Gregorian timestamp.

Question 2

Does this mean other calendars are wrong?

Accepted Answer

Not necessarily. Many calendars are designed primarily for civil date lookup and place solar terms on the Gregorian date on which they occur. Our emphasis is the solar term's placement within the Gan-Zhi and lunar calendrical systems under the Zi-hour day-change rule.

Question 3

What does it mean that the day changes at Zi hour?

Accepted Answer

Zi hour runs from 23:00 to 01:00. In many traditional Chinese calendrical systems, a new day begins at Zi hour rather than at civil midnight. Our algorithm applies this rule to both the Gan-Zhi calendar and the lunar calendar, affecting the day pillar, the lunar date, and the placement of some solar terms.

Question 4

Why not simply display solar terms by Gregorian date?

Accepted Answer

Solar terms, the Gan-Zhi calendar, and the lunar calendar belong to the same traditional Chinese calendrical system. We display the exact Gregorian time, the Gan-Zhi information, and the lunar-calendar placement together rather than treating solar terms only as Gregorian-date annotations.

Question 5

Why does Southern Hemisphere BaZi charting require special handling?

Accepted Answer

BaZi charting depends on solar terms and seasonal structure. The Southern Hemisphere has the opposite seasonal rhythm of the Northern Hemisphere. Our method handles year and month pillars according to Southern Hemisphere seasonal timing rather than copying Northern Hemisphere results mechanically.

Question 6

What is true solar time, and why does it matter in BaZi charting?

Accepted Answer

True solar time reflects the Sun's actual position at a specific location rather than zone-defined civil time. BaZi charting is sensitive to the hour of birth and solar-term boundaries, so true solar time handling improves accuracy for hour pillars and solar-term transitions.

萬年曆·泉布坊定製版

產品影片

三個核心特點

子時換日

南半球八字排盤

真太陽時處理

2026 年芒種：一個具體例子

萬年曆·泉布坊定製版常見問答