Ruling · Durgā Saptamī · 1985

Sunday 20 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 595 minutes.

Decide it for

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two mornings

One ghaṭī is 24 minutes. The first muhūrta after sunrise is 1st of 15 day muhūrtas.

Morning of Saturday 19 October

Saptamī is absent from the first muhūrta after sunrise. Not taken.

sunrise 06:03  06:46 one muhūrta on
05:1505:3906:0306:2706:5107:1507:39

0 of 43 minutes covered

Morning of Sunday 20 October

Taken. The only morning Saptamī reaches.

sunrise 06:04  06:47 one muhūrta on
05:1605:4006:0406:2806:5207:1607:40

43 of 43 minutes covered

Saptamī presentThe first muhūrta after sunrise, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 18:11 on Sat 19 Oct to 16:42 on Sun 20 Oct.

    1985-10-19T10:10:43Z → 1985-10-20T08:42:13Z

  2. 02

    Kāla

    The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:03–06:46 on the 19th, 06:04–06:47 on the 20th.

    udaya-1: day-muhurta-1-1 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Saptamī must hold through the first muhūrta after sunrise. It covers 0 of 43 minutes on the 19th and 43 of 43 on the 20th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Only one morning qualifies. No tie-break is needed.

    priority: paraviddha → only-day · margin 35723 s

  5. 05

    Ruling

    Durgā Saptamī, Daqing, 1985: Sunday 20 October.

    confidence: determinate

Say it like this

In Daqing, Durgā Saptamī 1985 falls on Sunday 20 October. Saptamī runs from 18:11 on Sat 19 Oct to 16:42 on Sun 20 Oct and covers all of the first muhūrta after sunrise that morning.

ahargana.org/daqing/festivals/1985/durga-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 20 Oct
Ahargaṇa, classicalDisc centre, no refractionSun 20 Oct
compat-drikpanchangComparison profileSun 20 Oct
No institution has a recorded ruling for Daqing.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/durga-saptami · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Śukla · Saptamī
Kāla
The first muhūrta after sunrise
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 104

“S 7 Durga saptami (paraviddha) — covering one muhurta from sunrise” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceSaptamīSunrise 19thCoveredSunrise 20thCoveredRuled
Los Angeles03:11 → 01:4207:0245 min07:030 min19 Oct
Chicago05:11 → 03:4207:0844 min07:090 min19 Oct
Jersey City06:11 → 04:4207:1244 min07:130 min19 Oct
Port of Spain06:11 → 04:4205:5532 min05:560 min19 Oct
London11:11 → 09:4207:310 min07:3342 min20 Oct
Durban12:11 → 10:4205:140 min05:1352 min20 Oct
Dubai14:11 → 12:4206:190 min06:2046 min20 Oct
Delhi15:41 → 14:1206:240 min06:2545 min20 Oct
Kolkata15:41 → 14:1205:350 min05:3546 min20 Oct
Singapore18:11 → 16:4206:470 min06:4748 min20 Oct
Sydney20:11 → 18:4205:100 min05:0952 min20 Oct
Suva22:11 → 20:4205:350 min05:3450 min20 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
durga-saptami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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