Hongsimdang

Free BaZi compatibility calculator

Compare two Four Pillars charts with each person's local birth time

Enter each person separately. Both cities' historical time zones and daylight-saving rules are checked before the relationship result opens in the same visual language as Hongsimdang's Korean compatibility reports.

Enter two birth chartsHow the comparison works
Hongsimdang paper artwork of gold constellations above burgundy and gold terrain
The result reuses Hongsimdang's relationship profile cards, axis chart, and result navigation. It compares attraction, everyday stability, repair after conflict, long-term rhythm, and sensitive tension without declaring a relationship good or bad.

Person 1

Birth details

Enter the local date and time shown on the birth record. We apply the city's historical time zone and daylight saving rules.

Location data: Countries States Cities Database (ODbL 1.0).

Date of birth

Month / Day / Year

If clocks changed at that time, we will ask which occurrence matches the birth record.

Person 2

Birth details

Enter the local date and time shown on the birth record. We apply the city's historical time zone and daylight saving rules.

Location data: Countries States Cities Database (ODbL 1.0).

Date of birth

Month / Day / Year

If clocks changed at that time, we will ask which occurrence matches the birth record.

Each person chooses their own birthplace and recorded local time. Historical time-zone and daylight-saving rules are checked separately. Dates must use the Gregorian calendar.