Ruling · Durgā Saptamī · 2011

Monday 3 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 300 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 Monday 3 October

Taken. The only morning Saptamī reaches.

sunrise 05:40  06:27 one muhūrta on
04:5205:1605:4006:0406:2806:5207:16

46 of 46 minutes covered

Morning of Tuesday 4 October

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

sunrise 05:42  06:28 one muhūrta on
04:5405:1805:4206:0606:3006:5407:18

0 of 46 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 00:41 on Mon 3 Oct to 23:33 on Mon 3 Oct.

    2011-10-02T16:40:30Z → 2011-10-03T15:32:50Z

  2. 02

    Kāla

    The first muhūrta after sunrise is 1st of 15 day muhūrtas: 05:40–06:27 on the 3rd, 05:42–06:28 on the 4th.

    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 46 of 46 minutes on the 3rd and 0 of 46 on the 4th.

    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 17997 s

  5. 05

    Ruling

    Durgā Saptamī, Daqing, 2011: Monday 3 October.

    confidence: determinate

Say it like this

In Daqing, Durgā Saptamī 2011 falls on Monday 3 October. Saptamī runs from 00:41 on Mon 3 Oct to 23:33 on Mon 3 Oct and covers all of the first muhūrta after sunrise that morning.

ahargana.org/daqing/festivals/2011/durga-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 3 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 3 Oct
compat-drikpanchangComparison profileMon 3 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 2ndCoveredSunrise 3rdCoveredRuled
Los Angeles09:41 → 08:3306:480 min06:4947 min3 Oct
Chicago11:41 → 10:3306:490 min06:5047 min3 Oct
Jersey City12:41 → 11:3306:540 min06:5547 min3 Oct
Port of Spain12:41 → 11:3305:550 min05:5548 min3 Oct
London17:41 → 16:3307:020 min07:0446 min3 Oct
Durban18:41 → 17:3305:340 min05:3350 min3 Oct
Dubai20:41 → 19:3306:110 min06:1247 min3 Oct
Delhi22:11 → 21:0306:140 min06:1547 min3 Oct
Kolkata22:11 → 21:0305:280 min05:2948 min3 Oct
Singapore00:41 → 23:3306:510 min06:5148 min3 Oct
Sydney03:41 → 02:3306:320 min06:3150 min3 Oct
Suva04:41 → 03:3305:480 min05:4849 min3 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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