Ruling · Durgā Saptamī · 2020

Friday 23 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 156 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 Thursday 22 October

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

sunrise 06:08  06:50 one muhūrta on
05:2005:4406:0806:3206:5607:2007:44

0 of 42 minutes covered

Morning of Friday 23 October

Taken. The only morning Saptamī reaches.

sunrise 06:09  06:51 one muhūrta on
05:2105:4506:0906:3306:5707:2107:45

42 of 42 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 10:10 on Thu 22 Oct to 09:27 on Fri 23 Oct.

    2020-10-22T02:10:06Z → 2020-10-23T01:27:24Z

  2. 02

    Kāla

    The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:08–06:50 on the 22nd, 06:09–06:51 on the 23rd.

    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 42 minutes on the 22nd and 42 of 42 on the 23rd.

    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 9379 s

  5. 05

    Ruling

    Durgā Saptamī, Daqing, 2020: Friday 23 October.

    confidence: determinate

Say it like this

In Daqing, Durgā Saptamī 2020 falls on Friday 23 October. Saptamī runs from 10:10 on Thu 22 Oct to 09:27 on Fri 23 Oct and covers all of the first muhūrta after sunrise that morning.

ahargana.org/daqing/festivals/2020/durga-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 23 Oct
Ahargaṇa, classicalDisc centre, no refractionFri 23 Oct
compat-drikpanchangComparison profileFri 23 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 22ndCoveredSunrise 23rdCoveredRuled
Los Angeles19:10 → 18:2707:0544 min07:050 min22 Oct
Chicago21:10 → 20:2707:1243 min07:130 min22 Oct
Jersey City22:10 → 21:2707:1643 min07:170 min22 Oct
Port of Spain22:10 → 21:2705:5647 min05:560 min22 Oct
London03:10 → 02:2707:3841 min07:390 min22 Oct
Durban04:10 → 03:2705:1152 min05:100 min22 Oct
Dubai06:10 → 05:2706:2146 min06:210 min22 Oct
Delhi07:40 → 06:5706:270 min06:2730 min22 Oct
Kolkata07:40 → 06:5705:360 min05:3746 min23 Oct
Singapore10:10 → 09:2706:470 min06:4748 min23 Oct
Sydney13:10 → 12:2706:060 min06:0553 min23 Oct
Suva14:10 → 13:2705:330 min05:3250 min23 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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