Ruling · Durgā Saptamī · 2089

Monday 10 October

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 1 min 22 s away. 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 Monday 10 October

Taken. The only morning Saptamī reaches.

sunrise 06:23  07:09 one muhūrta on
05:3505:5906:2306:4707:1107:3507:59

46 of 46 minutes covered

Morning of Tuesday 11 October

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

sunrise 06:24  07:10 one muhūrta on
Saptamī ends 06:23:04
05:3606:0006:2406:4807:1207:3608:00

0 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 04:46 on Mon 10 Oct to 06:23 on Tue 11 Oct.

    2089-10-09T20:45:47Z → 2089-10-10T22:23:04Z

  2. 02

    Kāla

    The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:23–07:09 on the 10th, 06:24–07:10 on the 11th.

    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 46 of 46 minutes on the 10th and 0 of 45 on the 11th.

    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 82 s < 300 s

  5. 05

    Ruling

    Durgā Saptamī, Baoding, 2089: Monday 10 October.

    confidence: boundary (margin)

Say it like this

In Baoding, Durgā Saptamī 2089 falls on Monday 10 October. Saptamī runs from 04:46 on Mon 10 Oct to 06:23 on Tue 11 Oct and covers all of the first muhūrta after sunrise that morning. It is 1 min 22 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/2089/durga-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 10 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 10 Oct
compat-drikpanchangComparison profileMon 10 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 9thCoveredSunrise 10thCoveredRuled
Los Angeles13:46 → 15:2306:550 min06:5546 min10 Oct
Chicago15:46 → 17:2306:580 min06:5945 min10 Oct
Jersey City16:46 → 18:2307:030 min07:0445 min10 Oct
Port of Spain16:46 → 18:2305:550 min05:5548 min10 Oct
London21:46 → 23:2307:160 min07:1844 min10 Oct
Durban22:46 → 00:2305:250 min05:2451 min10 Oct
Dubai00:46 → 02:2306:150 min06:1547 min10 Oct
Delhi02:16 → 03:5306:190 min06:2046 min10 Oct
Kolkata02:16 → 03:5305:310 min05:3247 min10 Oct
Singapore04:46 → 06:2306:500 min06:4948 min10 Oct
Sydney07:46 → 09:2306:220 min06:200 min11 Oct
Suva08:46 → 10:2305:420 min05:410 min11 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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