Ruling · Durgā Saptamī · 1980

Thursday 16 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 406 minutes.

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 16 October

Taken. The only morning Saptamī reaches.

sunrise 06:29  07:13 one muhūrta on
05:4106:0506:2906:5307:1707:4108:05

45 of 45 minutes covered

Morning of Friday 17 October

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

sunrise 06:30  07:14 one muhūrta on
05:4206:0606:3006:5407:1807:4208:06

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 23:06 on Wed 15 Oct to 23:44 on Thu 16 Oct.

    1980-10-15T15:05:42Z → 1980-10-16T15:43:38Z

  2. 02

    Kāla

    The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:29–07:13 on the 16th, 06:30–07:14 on the 17th.

    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 45 of 45 minutes on the 16th and 0 of 44 on the 17th.

    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 24354 s

  5. 05

    Ruling

    Durgā Saptamī, Baoding, 1980: Thursday 16 October.

    confidence: determinate

Say it like this

In Baoding, Durgā Saptamī 1980 falls on Thursday 16 October. Saptamī runs from 23:06 on Wed 15 Oct to 23:44 on Thu 16 Oct and covers all of the first muhūrta after sunrise that morning.

ahargana.org/baoding/festivals/1980/durga-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 16 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 16 Oct
compat-drikpanchangComparison profileThu 16 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 15thCoveredSunrise 16thCoveredRuled
Los Angeles08:06 → 08:4406:590 min06:5945 min16 Oct
Chicago10:06 → 10:4407:040 min07:0544 min16 Oct
Jersey City11:06 → 11:4407:080 min07:0944 min16 Oct
Port of Spain11:06 → 11:4405:550 min05:5548 min16 Oct
London16:06 → 16:4407:250 min07:2743 min16 Oct
Durban17:06 → 17:4405:180 min05:1751 min16 Oct
Dubai19:06 → 19:4406:170 min06:1846 min16 Oct
Delhi20:36 → 21:1406:220 min06:2346 min16 Oct
Kolkata20:36 → 21:1405:330 min05:3446 min16 Oct
Singapore22:36 → 23:1406:180 min06:1848 min16 Oct
Sydney01:06 → 01:4405:140 min05:1352 min16 Oct
Suva03:06 → 03:4405:380 min05:3750 min16 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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