Ruling · Durgā Saptamī · 1921

Saturday 8 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 444 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 Friday 7 October

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

sunrise 05:46  06:31 one muhūrta on
04:5805:2205:4606:1006:3406:5807:22

0 of 46 minutes covered

Morning of Saturday 8 October

Taken. The only morning Saptamī reaches.

sunrise 05:47  06:32 one muhūrta on
04:5905:2305:4706:1106:3506:5907:23

45 of 45 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 13:55 on Fri 7 Oct to 15:17 on Sat 8 Oct.

    1921-10-07T05:55:27Z → 1921-10-08T07:17:15Z

  2. 02

    Kāla

    The first muhūrta after sunrise is 1st of 15 day muhūrtas: 05:46–06:31 on the 7th, 05:47–06:32 on the 8th.

    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 46 minutes on the 7th and 45 of 45 on the 8th.

    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 26658 s

  5. 05

    Ruling

    Durgā Saptamī, Daqing, 1921: Saturday 8 October.

    confidence: determinate

Say it like this

In Daqing, Durgā Saptamī 1921 falls on Saturday 8 October. Saptamī runs from 13:55 on Fri 7 Oct to 15:17 on Sat 8 Oct and covers all of the first muhūrta after sunrise that morning.

ahargana.org/daqing/festivals/1921/durga-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 8 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 8 Oct
compat-drikpanchangComparison profileSat 8 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 7thCoveredSunrise 8thCoveredRuled
Los Angeles21:55 → 23:1705:5246 min05:530 min7 Oct
Chicago00:55 → 02:1706:5446 min06:550 min7 Oct
Jersey City00:55 → 02:1705:5946 min06:000 min7 Oct
Port of Spain01:55 → 03:1705:5548 min05:550 min7 Oct
London05:55 → 07:1706:1045 min06:1245 min8 Oct
Durban07:55 → 09:1705:280 min05:2750 min8 Oct
Dubai09:55 → 11:1706:130 min06:1447 min8 Oct
Delhi11:25 → 12:4706:170 min06:1847 min8 Oct
Kolkata11:25 → 12:4705:300 min05:3047 min8 Oct
Singapore12:55 → 14:1705:500 min05:5048 min8 Oct
Sydney15:55 → 17:1705:260 min05:2451 min8 Oct
Suva17:55 → 19:1705:440 min05:4449 min8 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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