Ruling · Durgā Saptamī · 2091

Thursday 18 October

Boundaryin Baoding, under the Rashtriya Panchang method. Saptamī reaches the first muhūrta after sunrise on neither day and the rule does not say what then. Say “contested”.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two mornings

One ghaṭī is 24 minutes. The first muhūrta after sunrise is 1st of 15 day muhūrtas.

Morning of Thursday 18 October

Taken. Saptamī reaches neither morning; this is the day it falls on.

sunrise 06:31  07:15 one muhūrta on
Saptamī begins 07:28:49
05:4306:0706:3106:5507:1907:4308:07

0 of 44 minutes covered

Morning of Friday 19 October

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

sunrise 06:32  07:16 one muhūrta on
Saptamī ends 06:12:49
05:4406:0806:3206:5607:2007:4408:08

0 of 44 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 07:29 on Thu 18 Oct to 06:13 on Fri 19 Oct.

    2091-10-17T23:28:49Z → 2091-10-18T22:12:50Z

  2. 02

    Kāla

    The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:31–07:15 on the 18th, 06:32–07:16 on the 19th.

    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 44 minutes on the 18th and 0 of 44 on the 19th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Neither morning qualifies. The day the tithi falls on is taken.

    priority: paraviddha → tithi-day · margin 816 s

  5. 05

    Ruling

    Durgā Saptamī, Baoding, 2091: Thursday 18 October.

    confidence: boundary (absent-unstated)

Say it like this

In Baoding, Durgā Saptamī 2091 falls on Thursday 18 October. Saptamī runs from 07:29 on Thu 18 Oct to 06:13 on Fri 19 Oct, and reaches the first muhūrta after sunrise on neither day.

ahargana.org/baoding/festivals/2091/durga-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 18 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 18 Oct
compat-drikpanchangComparison profileThu 18 Oct
No institution has a recorded ruling for Baoding.

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 17thCoveredSunrise 18thCoveredRuled
Los Angeles16:29 → 15:1307:010 min07:0145 min18 Oct
Chicago18:29 → 17:1307:060 min07:0744 min18 Oct
Jersey City19:29 → 18:1307:110 min07:1244 min18 Oct
Port of Spain19:29 → 18:1305:560 min05:5647 min18 Oct
London00:29 → 23:1307:290 min07:3142 min18 Oct
Durban01:29 → 00:1305:160 min05:1552 min18 Oct
Dubai03:29 → 02:1306:180 min06:1946 min18 Oct
Delhi04:59 → 03:4306:240 min06:2446 min18 Oct
Kolkata04:59 → 03:4305:340 min05:3546 min18 Oct
Singapore07:29 → 06:1306:480 min06:487 min18 Oct
Sydney10:29 → 09:1306:120 min06:110 min19 Oct
Suva11:29 → 10:1305:370 min05:360 min19 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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