Ruling · Durgā Saptamī · 2001

Tuesday 23 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 490 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 Tuesday 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

Morning of Wednesday 24 October

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

sunrise 06:10  06:52 one muhūrta on
05:2205:4606:1006:3406:5807:2207:46

0 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 20:29 on Mon 22 Oct to 22:00 on Tue 23 Oct.

    2001-10-22T12:28:58Z → 2001-10-23T13:59:31Z

  2. 02

    Kāla

    The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:09–06:51 on the 23rd, 06:10–06:52 on the 24th.

    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 42 of 42 minutes on the 23rd and 0 of 42 on the 24th.

    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 29427 s

  5. 05

    Ruling

    Durgā Saptamī, Daqing, 2001: Tuesday 23 October.

    confidence: determinate

Say it like this

In Daqing, Durgā Saptamī 2001 falls on Tuesday 23 October. Saptamī runs from 20:29 on Mon 22 Oct to 22:00 on Tue 23 Oct and covers all of the first muhūrta after sunrise that morning.

ahargana.org/daqing/festivals/2001/durga-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 23 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 23 Oct
compat-drikpanchangComparison profileTue 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 Angeles05:29 → 07:0007:0444 min07:050 min22 Oct
Chicago07:29 → 09:0007:1226 min07:1343 min23 Oct
Jersey City08:29 → 10:0007:160 min07:1743 min23 Oct
Port of Spain08:29 → 10:0005:560 min05:5647 min23 Oct
London13:29 → 15:0007:370 min07:3941 min23 Oct
Durban14:29 → 16:0005:110 min05:1052 min23 Oct
Dubai16:29 → 18:0006:210 min06:2146 min23 Oct
Delhi17:59 → 19:3006:260 min06:2745 min23 Oct
Kolkata17:59 → 19:3005:360 min05:3746 min23 Oct
Singapore20:29 → 22:0006:470 min06:4748 min23 Oct
Sydney22:29 → 00:0005:060 min05:0553 min23 Oct
Suva00:29 → 02:0005:330 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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