{"ok":true,"source":"d5.co.kr 자체 달력 DB 및 사전 계산 데이터","timezone":"Asia/Seoul","coverage":{"first_date":"1753-01-01","last_date":"2050-12-31","records":"108841"},"keyword":"4월 21일 음력","plan":{"mode":"anniversary","dates":["2026-04-21","2027-04-21","2028-04-21","2029-04-21","2030-04-21"],"note":"키워드의 월·일을 양력으로 해석했습니다. 연도가 없으면 현재 연도부터 5년을 비교합니다. 생일의 실제 음력은 출생 연도를 선택해 확인하세요."},"data":[{"date":"2026-04-21","weekday":"화","lunar":{"year":2026,"month":3,"day":5,"leap":false},"phase":{"name":"초승달","name_en":"Waxing Crescent","icon":"🌒","index":1,"angle":50.427,"illumination":18.34,"age":3.63,"date":"2026-04-21","reference_time":"2026-04-21T12:00:00+09:00","source":"Astronomy Engine","model":"daily-noon-kst-v1"},"legacy_moonrise":"08:11","legacy_moonset":null},{"date":"2027-04-21","weekday":"수","lunar":{"year":2027,"month":3,"day":15,"leap":false},"phase":{"name":"보름달","name_en":"Full Moon","icon":"🌕","index":4,"angle":182.332,"illumination":99.78,"age":14.13,"date":"2027-04-21","reference_time":"2027-04-21T12:00:00+09:00","source":"Astronomy Engine","model":"daily-noon-kst-v1"},"legacy_moonrise":"19:49","legacy_moonset":"05:29"},{"date":"2028-04-21","weekday":"금","lunar":{"year":2028,"month":3,"day":27,"leap":false},"phase":{"name":"그믐달","name_en":"Waning Crescent","icon":"🌘","index":7,"angle":318.235,"illumination":12.86,"age":25.94,"date":"2028-04-21","reference_time":"2028-04-21T12:00:00+09:00","source":"Astronomy Engine","model":"daily-noon-kst-v1"},"legacy_moonrise":"03:43","legacy_moonset":"15:57"},{"date":"2029-04-21","weekday":"토","lunar":{"year":2029,"month":3,"day":8,"leap":false},"phase":{"name":"초승달","name_en":"Waxing Crescent","icon":"🌒","index":1,"angle":81.436,"illumination":42.68,"age":7.22,"date":"2029-04-21","reference_time":"2029-04-21T12:00:00+09:00","source":"Astronomy Engine","model":"daily-noon-kst-v1"},"legacy_moonrise":"11:04","legacy_moonset":"00:58"},{"date":"2030-04-21","weekday":"일","lunar":{"year":2030,"month":3,"day":19,"leap":false},"phase":{"name":"기우는 달","name_en":"Waning Gibbous","icon":"🌖","index":5,"angle":221.956,"illumination":87.24,"age":18.21,"date":"2030-04-21","reference_time":"2030-04-21T12:00:00+09:00","source":"Astronomy Engine","model":"daily-noon-kst-v1"},"legacy_moonrise":"23:05","legacy_moonset":"07:55"}],"missing_dates":[],"method":"음력·윤달은 자체 DB 원본, 위상·조명률은 자체 보유 일별 낮 12시 KST 계산값. 음력 15일과 천문학적 보름 시각을 동일시하지 않음. 기존 DB 월출·월몰에는 지역 메타데이터가 없으므로 전국 공통 시각으로 단정하지 않음. 서울 시각·방위는 /api/moon-calc.php?date=YYYY-MM-DD 로 별도 조회.","links":{"calendar":"https://d5.co.kr/","day_api":"https://d5.co.kr/api-day.php?date=YYYY-MM-DD&range=0","seoul_api":"https://d5.co.kr/api/moon-calc.php?date=YYYY-MM-DD"}}