Ruling · Durgā Saptamī · 1998

Monday 28 September

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 520 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 Sunday 27 September

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

sunrise 05:33  06:20 one muhūrta on
04:4505:0905:3305:5706:2106:4507:09

0 of 48 minutes covered

Morning of Monday 28 September

Taken. The only morning Saptamī reaches.

sunrise 05:34  06:22 one muhūrta on
04:4605:1005:3405:5806:2206:4607:10

48 of 48 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 15:00 on Sun 27 Sep to 16:36 on Mon 28 Sep.

    1998-09-27T07:00:11Z → 1998-09-28T08:36:19Z

  2. 02

    Kāla

    The first muhūrta after sunrise is 1st of 15 day muhūrtas: 05:33–06:20 on the 27th, 05:34–06:22 on the 28th.

    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 48 minutes on the 27th and 48 of 48 on the 28th.

    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 31182 s

  5. 05

    Ruling

    Durgā Saptamī, Daqing, 1998: Monday 28 September.

    confidence: determinate

Say it like this

In Daqing, Durgā Saptamī 1998 falls on Monday 28 September. Saptamī runs from 15:00 on Sun 27 Sep to 16:36 on Mon 28 Sep and covers all of the first muhūrta after sunrise that morning.

ahargana.org/daqing/festivals/1998/durga-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 28 Sep
Ahargaṇa, classicalDisc centre, no refractionMon 28 Sep
compat-drikpanchangComparison profileMon 28 Sep
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 27thCoveredSunrise 28thCoveredRuled
Los Angeles00:00 → 01:3606:4548 min06:460 min27 Sep
Chicago02:00 → 03:3606:4348 min06:440 min27 Sep
Jersey City03:00 → 04:3606:4948 min06:500 min27 Sep
Port of Spain03:00 → 04:3605:5548 min05:550 min27 Sep
London08:00 → 09:3606:540 min06:5647 min28 Sep
Durban09:00 → 10:3605:400 min05:3949 min28 Sep
Dubai11:00 → 12:3606:090 min06:1048 min28 Sep
Delhi12:30 → 14:0606:120 min06:1248 min28 Sep
Kolkata12:30 → 14:0605:270 min05:2748 min28 Sep
Singapore15:00 → 16:3606:530 min06:5348 min28 Sep
Sydney17:00 → 18:3605:390 min05:3849 min28 Sep
Suva19:00 → 20:3605:530 min05:5249 min28 Sep
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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