Myeongsik Note: Saju Calendar

Keep every saju chart you look at — with notes that stay attached.

Myeongsik Note is a manseryeok (Korean ten-thousand-year calendar) for people who study the Four Pillars of Destiny (saju, bazi). Enter a birth date and time and get the full chart in seconds: four pillars, ten gods, hidden stems, 12 life stages, key symbolic stars, clashes and combinations, luck cycles and yearly and monthly pillars.

WHY IT IS DIFFERENT
• Notes on every person. Write what happened and when ("2024.5 changed jobs") and read it next to their luck cycles.
• Groups. Family, study group, clients — never lose track of whose chart is whose.
• Daily pillar diary. Today's day pillar and what it means for your own day stem, on the home screen and in a widget. Write one line a day and search it later.
• Tap any term. Ten gods, life stages and stars each open a one-line explanation.

ACCURATE CALCULATION
• Solar terms calculated astronomically to the minute; the year changes at Ipchun (Start of Spring), months at each solar term.
• Longitude correction (default −30 min for Korea), Korean daylight saving time and historical time zones handled automatically.
• Late-night rat hour option, lunar dates with leap months, age shown the way you prefer.
• The basis of every calculation is shown under the chart, so you always know why an hour pillar is what it is.

SIMPLE
• No sign-up, no account. Everything stays on your phone.
• Solar or lunar input, "time unknown" supported.
• One-file backup you can move to a new phone.
• Share a chart as an image card.
• Light and dark themes, larger text option.

Four Pillars content is traditional calendar culture, shown for reference and study.