{"success":true,"version":"v1","request":{"tool":"convert_julian_date","calculator_id":"julian-date","inputs":{"date":"2026-09-24","time":"00:00","time_zone":"UTC"},"request_id":"req_7a9a85ebfecd47a0a0e4","received_at":"2026-09-24T01:53:01Z"},"result":{"entity_type":"calculation","id":"calc_julian-date","calculator_id":"julian-date","calculator_name":"Julian Date Calculator","category":"time","status":"completed","values":{"julian_day_number":2461308,"julian_date":2461307.5,"modified_julian_date":61307,"truncated_julian_date":21307,"days_since_j2000":9762.5,"julian_century":0.26728268,"utc_datetime":"2026-09-24T00:00:00Z","day_of_week":"Thursday","day_of_year":267,"iso_week_date":"2026-W39-4"},"units":{"julian_date":"days","modified_julian_date":"days","days_since_j2000":"days"},"formula":"a = ⌊(14 − month)/12⌋, y = year + 4800 − a, m = month + 12a − 3; JDN = day + ⌊(153m + 2)/5⌋ + 365y + ⌊y/4⌋ − ⌊y/100⌋ + ⌊y/400⌋ − 32045; JD = JDN − 0.5 + (hours_UT / 24); MJD = JD − 2400000.5","notes":[],"summary":"Julian Day Number (JDN): 2461308; Julian Date (JD): 2461307.5 days; Modified Julian Date (MJD): 61307 days; Truncated Julian Date (TJD): 21307; Days since J2000.0: 9762.5 days; Julian centuries since J2000.0: 0.26728268; UTC date-time: 2026-09-24T00:00:00Z; Weekday (UTC): Thursday; Day of year (UTC): 267; ISO week date: 2026-W39-4"},"warnings":[],"sources":[{"name":"USNO Astronomical Applications – Julian Date Converter","url":"https://aa.usno.navy.mil/data/JulianDate","type":"government","retrieved_at":"2026-09-24"},{"name":"Julian day – JDN algorithms and epochs (Wikipedia)","url":"https://en.wikipedia.org/wiki/Julian_day","type":"reference","retrieved_at":"2026-09-24"}],"freshness":{"type":"daily","max_age_seconds":86400,"note":"Depends on the current date unless the date is supplied."},"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":"2026-09-24T01:53:01Z","duration_ms":0,"next_actions":[{"tool":"convert_unix_timestamp","calculator_id":"unix-timestamp","reason":"Unix epoch value of the same instant.","url":"https://tttkmbb.com/api/v1/calculate/unix-timestamp","docs":"https://tttkmbb.com/time/unix-timestamp.md"},{"tool":"calculate_day_of_week","calculator_id":"day-of-week","reason":"Weekday and ordinal day of year of a date.","url":"https://tttkmbb.com/api/v1/calculate/day-of-week","docs":"https://tttkmbb.com/everyday/day-of-week.md"},{"tool":"calculate_date_difference","calculator_id":"date-difference","reason":"Days between two dates (equal to the JDN difference).","url":"https://tttkmbb.com/api/v1/calculate/date-difference","docs":"https://tttkmbb.com/everyday/date-difference.md"}],"links":{"self":"https://tttkmbb.com/api/v1/calculate/julian-date?date=2026-09-24&time=00%3A00&time_zone=UTC","html":"https://tttkmbb.com/time/julian-date?date=2026-09-24&time=00%3A00&time_zone=UTC","markdown":"https://tttkmbb.com/time/julian-date.md","schema":"https://tttkmbb.com/api/v1/calculators/julian-date","openapi":"https://tttkmbb.com/openapi.json","mcp":"https://tttkmbb.com/mcp","task":"https://tttkmbb.com/api/v1/tasks/task_eyJjIjoianVsaWFuLWRhdGUiLCJpIjp7ImRhdGUiOiIyMDI2LTA5LTI0IiwidGltZSI6IjAwOjAwIiwidGltZV96b25lIjoiVVRDIn0sInQiOiIyMDI2LTA5LTI0VDAxOjUzOjAxWiJ9"}}