Ruling · Durgā Saptamī · 1922

Wednesday 27 September

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 601 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 Wednesday 27 September

Taken. The only morning Saptamī reaches.

sunrise 05:32  06:20 one muhūrta on
04:4405:0805:3205:5606:2006:4407:08

48 of 48 minutes covered

Morning of Thursday 28 September

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

sunrise 05:33  06:21 one muhūrta on
04:4505:0905:3305:5706:2106:4507:09

0 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 19:31 on Tue 26 Sep to 18:45 on Wed 27 Sep.

    1922-09-26T11:31:05Z → 1922-09-27T10:45:27Z

  2. 02

    Kāla

    The first muhūrta after sunrise is 1st of 15 day muhūrtas: 05:32–06:20 on the 27th, 05:33–06:21 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 48 of 48 minutes on the 27th and 0 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 36049 s

  5. 05

    Ruling

    Durgā Saptamī, Daqing, 1922: Wednesday 27 September.

    confidence: determinate

Say it like this

In Daqing, Durgā Saptamī 1922 falls on Wednesday 27 September. Saptamī runs from 19:31 on Tue 26 Sep to 18:45 on Wed 27 Sep and covers all of the first muhūrta after sunrise that morning.

ahargana.org/daqing/festivals/1922/durga-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 27 Sep
Ahargaṇa, classicalDisc centre, no refractionWed 27 Sep
compat-drikpanchangComparison profileWed 27 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 26thCoveredSunrise 27thCoveredRuled
Los Angeles03:31 → 02:4505:4448 min05:440 min26 Sep
Chicago05:31 → 04:4505:4248 min05:430 min26 Sep
Jersey City06:31 → 05:4505:474 min05:480 min26 Sep
Port of Spain07:31 → 06:4505:550 min05:5548 min27 Sep
London12:31 → 11:4506:520 min06:5348 min27 Sep
Durban13:31 → 12:4505:420 min05:4149 min27 Sep
Dubai15:31 → 14:4506:090 min06:0948 min27 Sep
Delhi17:01 → 16:1506:110 min06:1248 min27 Sep
Kolkata17:01 → 16:1505:260 min05:2748 min27 Sep
Singapore18:31 → 17:4505:530 min05:5348 min27 Sep
Sydney21:31 → 20:4505:410 min05:4049 min27 Sep
Suva23:31 → 22:4505:540 min05:5349 min27 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

About Ahargaṇa