Ruling · Durgā Saptamī · 1913

Sunday 5 October

Boundaryin Phoenix, 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

33°27′ N 112°04′ W · America/Phoenix · GeoNames 5308655

The two mornings

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

Morning of Sunday 5 October

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

sunrise 06:25  07:12 one muhūrta on
Saptamī begins 06:43:03
05:3706:0106:2506:4907:1307:3708:01

29 of 47 minutes covered, the last 29

Morning of Monday 6 October

Saptamī holds for 7 of 47 minutes of the first muhūrta after sunrise, not all of it. Not taken.

sunrise 06:26  07:13 one muhūrta on
Saptamī ends 06:32:38
05:3806:0206:2606:5007:1407:3808:02

7 of 47 minutes covered, the first 7

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 06:43 on Sun 5 Oct to 06:33 on Mon 6 Oct.

    1913-10-05T13:43:04Z → 1913-10-06T13:32:39Z

  2. 02

    Kāla

    The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:25–07:12 on the 5th, 06:26–07:13 on the 6th.

    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 29 of 47 minutes on the 5th and 7 of 47 on the 6th.

    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 394 s

  5. 05

    Ruling

    Durgā Saptamī, Phoenix, 1913: Sunday 5 October.

    confidence: boundary (absent-unstated)

Say it like this

In Phoenix, Durgā Saptamī 1913 falls on Sunday 5 October. Saptamī runs from 06:43 on Sun 5 Oct to 06:33 on Mon 6 Oct, and reaches the first muhūrta after sunrise on neither day.

ahargana.org/phoenix/festivals/1913/durga-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 5 Oct
Ahargaṇa, classicalDisc centre, no refractionSun 5 Oct
compat-drikpanchangComparison profileSun 5 Oct
No institution has a recorded ruling for Phoenix.

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 5thCoveredSunrise 6thCoveredRuled
Los Angeles05:43 → 05:3305:5047 min05:510 min5 Oct
Chicago07:43 → 07:3305:520 min05:5346 min6 Oct
Jersey City08:43 → 08:3305:570 min05:5846 min6 Oct
Port of Spain09:43 → 09:3305:550 min05:5548 min6 Oct
London13:43 → 13:3306:070 min06:0945 min6 Oct
Durban15:43 → 15:3305:310 min05:2950 min6 Oct
Dubai17:24 → 17:1405:530 min05:5447 min6 Oct
Delhi19:13 → 19:0306:160 min06:1647 min6 Oct
Kolkata19:13 → 19:0305:290 min05:3047 min6 Oct
Singapore20:43 → 20:3305:510 min05:5048 min6 Oct
Sydney23:43 → 23:3305:290 min05:2750 min6 Oct
Suva01:38 → 01:2805:410 min05:4049 min6 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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