{"success":true,"version":"v1","request":{"tool":"convert_solar_to_lunar","calculator_id":"lunar-calendar-converter","inputs":{"date":"2026-09-24"},"request_id":"req_8fc47a57d747412686b5","received_at":"2026-09-24T08:35:06Z"},"result":{"entity_type":"calculation","id":"calc_lunar-calendar-converter","calculator_id":"lunar-calendar-converter","calculator_name":"Lunar Calendar Converter (农历)","category":"lunar","status":"completed","values":{"lunar_year":2026,"lunar_month":8,"is_leap_month":false,"lunar_day":14,"lunar_date_chinese":"二〇二六年八月十四","lunar_date_text":"8th lunar month, day 14 (八月十四)","month_name":"八月","day_name":"十四","month_days":29,"leap_month_this_year":0,"year_ganzhi":"丙午","year_ganzhi_pinyin":"Bingwu","year_english":"Fire Horse","zodiac":"Horse (马)","nayin_year":"天河水 · Milky-way Water","month_ganzhi":"丁酉","month_ganzhi_pinyin":"Dingyou","day_ganzhi":"辛丑","day_ganzhi_pinyin":"Xinchou","weekday":"Thursday","current_solar_term":"秋分 (Qiufen, Autumn Equinox) since 2026-09-23","next_solar_term":"寒露 (Hanlu, Cold Dew) on 2026-10-08","days_to_next_term":14,"is_solar_term_day":false,"festival":"none","julian_day_number":2461308},"units":{"days_to_next_term":"days"},"formula":"lunar month = interval between successive new moons (instants at 120° E, UTC+8); month 11 contains the winter solstice; a leap month is the first month without a major solar term (中气) in a 13-month solstice-to-solstice suite; year_ganzhi index = (lunar_year − 4) mod 60; day_ganzhi index = (JDN + 49) mod 60; month branch = 寅 from 立春, one branch per odd solar term","notes":[],"summary":"Lunar year: 2026; Lunar month: 8; Leap month: false; Lunar day: 14; Lunar date (Chinese): 二〇二六年八月十四; Lunar date (English): 8th lunar month, day 14 (八月十四); Month name: 八月; Day name: 十四; Days in lunar month: 29; Leap month of the year: 0; Year ganzhi (干支): 丙午; Year ganzhi (pinyin): Bingwu; Year (element + animal): Fire Horse; Zodiac (生肖): Horse (马); Nayin (纳音) of the year: 天河水 · Milky-way Water; Month ganzhi: 丁酉; Month ganzhi (pinyin): Dingyou; Day ganzhi: 辛丑; Day ganzhi (pinyin): Xinchou; Weekday: Thursday; Current solar term (节气): 秋分 (Qiufen, Autumn Equinox) since 2026-09-23; Next solar term: 寒露 (Hanlu, Cold Dew) on 2026-10-08; Days to next term: 14 days; Solar-term day: false; Festival: none; Julian Day Number: 2461308"},"warnings":[],"sources":[{"name":"Chinese calendar (Wikipedia) – calendar rules as standardised in GB/T 33661-2017","url":"https://en.wikipedia.org/wiki/Chinese_calendar","type":"reference","retrieved_at":"2026-09-24"},{"name":"Hong Kong Observatory – Gregorian-Lunar Calendar Conversion Table","url":"https://www.hko.gov.hk/en/gts/time/conversion.htm","type":"government","retrieved_at":"2026-09-24"},{"name":"Meeus J. (1998) Astronomical Algorithms, 2nd ed., Willmann-Bell (solar longitude, nutation, ΔT, new moons)","url":"https://en.wikipedia.org/wiki/Jean_Meeus","type":"textbook","retrieved_at":"2026-09-24"}],"freshness":{"type":"daily","max_age_seconds":86400,"note":"Depends on the current date."},"cache":{"hit":false,"cacheable":true,"deterministic":false,"max_age_seconds":86400,"note":"Depends on the current date (inputs left at their default 'today'); re-run when the date changes. Explicit inputs make it deterministic."},"timestamp":"2026-09-24T08:35:06Z","duration_ms":0,"next_actions":[{"tool":"convert_lunar_to_solar","calculator_id":"lunar-to-solar","reason":"Reverse conversion from a lunar date to the Gregorian date.","url":"https://tttkmbb.com/api/v1/calculate/lunar-to-solar","docs":"https://tttkmbb.com/lunar/lunar-to-solar.md"},{"tool":"find_chinese_zodiac","calculator_id":"chinese-zodiac","reason":"Zodiac sign of a birth date with the 立春 boundary option and compatibility tables.","url":"https://tttkmbb.com/api/v1/calculate/chinese-zodiac","docs":"https://tttkmbb.com/lunar/chinese-zodiac.md"},{"tool":"calculate_moon_phase","calculator_id":"moon-phase","reason":"Astronomical moon phase and illumination for the same date.","url":"https://tttkmbb.com/api/v1/calculate/moon-phase","docs":"https://tttkmbb.com/time/moon-phase.md"}],"links":{"self":"https://tttkmbb.com/api/v1/calculate/lunar-calendar-converter?date=2026-09-24","html":"https://tttkmbb.com/lunar/lunar-calendar-converter?date=2026-09-24","markdown":"https://tttkmbb.com/lunar/lunar-calendar-converter.md","schema":"https://tttkmbb.com/api/v1/calculators/lunar-calendar-converter","openapi":"https://tttkmbb.com/openapi.json","mcp":"https://tttkmbb.com/mcp","task":"https://tttkmbb.com/api/v1/tasks/task_eyJjIjoibHVuYXItY2FsZW5kYXItY29udmVydGVyIiwiaSI6eyJkYXRlIjoiMjAyNi0wOS0yNCJ9LCJ0IjoiMjAyNi0wOS0yNFQwODozNTowNloifQ"}}