Ruling · Durgā Saptamī · 1902

Thursday 9 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 189 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 8 October

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

sunrise 05:46  06:32 one muhūrta on
04:5805:2205:4606:1006:3406:5807:22

0 of 45 minutes covered

Morning of Thursday 9 October

Taken. The only morning Saptamī reaches.

sunrise 05:48  06:33 one muhūrta on
05:0005:2405:4806:1206:3607:0007:24

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 09:41 on Wed 8 Oct to 12:10 on Thu 9 Oct.

    1902-10-08T01:41:10Z → 1902-10-09T04:10:05Z

  2. 02

    Kāla

    The first muhūrta after sunrise is 1st of 15 day muhūrtas: 05:46–06:32 on the 8th, 05:48–06:33 on the 9th.

    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 45 minutes on the 8th and 45 of 45 on the 9th.

    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 11361 s

  5. 05

    Ruling

    Durgā Saptamī, Daqing, 1902: Thursday 9 October.

    confidence: determinate

Say it like this

In Daqing, Durgā Saptamī 1902 falls on Thursday 9 October. Saptamī runs from 09:41 on Wed 8 Oct to 12:10 on Thu 9 Oct and covers all of the first muhūrta after sunrise that morning.

ahargana.org/daqing/festivals/1902/durga-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 9 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 9 Oct
compat-drikpanchangComparison profileThu 9 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 8thCoveredSunrise 9thCoveredRuled
Los Angeles17:41 → 20:1005:5246 min05:530 min8 Oct
Chicago19:41 → 22:1005:5446 min05:560 min8 Oct
Jersey City20:41 → 23:1005:5946 min06:000 min8 Oct
Port of Spain21:41 → 00:1005:5548 min05:550 min8 Oct
London01:41 → 04:1006:1145 min06:130 min8 Oct
Durban03:11 → 05:4004:5850 min04:5644 min8 Oct
Dubai05:22 → 07:5105:5447 min05:5547 min9 Oct
Delhi07:02 → 09:3106:080 min06:0947 min9 Oct
Kolkata07:02 → 09:3105:210 min05:2247 min9 Oct
Singapore08:36 → 11:0505:450 min05:4548 min9 Oct
Sydney11:41 → 14:1005:250 min05:2451 min9 Oct
Suva13:36 → 16:0505:390 min05:3849 min9 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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