Ruling · Durgā Saptamī · 2099

Tuesday 20 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 685 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 Tuesday 20 October

Taken. The only morning Saptamī reaches.

sunrise 06:33  07:17 one muhūrta on
05:4506:0906:3306:5707:2107:4508:09

44 of 44 minutes covered

Morning of Wednesday 21 October

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

sunrise 06:34  07:18 one muhūrta on
05:4606:1006:3406:5807:2207:4608:10

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 19:05 on Mon 19 Oct to 19:09 on Tue 20 Oct.

    2099-10-19T11:05:06Z → 2099-10-20T11:08:51Z

  2. 02

    Kāla

    The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:33–07:17 on the 20th, 06:34–07:18 on the 21st.

    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 44 of 44 minutes on the 20th and 0 of 44 on the 21st.

    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 41116 s

  5. 05

    Ruling

    Durgā Saptamī, Baoding, 2099: Tuesday 20 October.

    confidence: determinate

Say it like this

In Baoding, Durgā Saptamī 2099 falls on Tuesday 20 October. Saptamī runs from 19:05 on Mon 19 Oct to 19:09 on Tue 20 Oct and covers all of the first muhūrta after sunrise that morning.

ahargana.org/baoding/festivals/2099/durga-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 20 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 20 Oct
compat-drikpanchangComparison profileTue 20 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 19thCoveredSunrise 20thCoveredRuled
Los Angeles04:05 → 04:0907:0245 min07:030 min19 Oct
Chicago06:05 → 06:0907:0944 min07:100 min19 Oct
Jersey City07:05 → 07:0907:1344 min07:140 min19 Oct
Port of Spain07:05 → 07:0905:560 min05:5647 min20 Oct
London12:05 → 12:0907:320 min07:3441 min20 Oct
Durban13:05 → 13:0905:140 min05:1352 min20 Oct
Dubai15:05 → 15:0906:200 min06:2046 min20 Oct
Delhi16:35 → 16:3906:250 min06:2645 min20 Oct
Kolkata16:35 → 16:3905:350 min05:3646 min20 Oct
Singapore19:05 → 19:0906:480 min06:4848 min20 Oct
Sydney22:05 → 22:0906:100 min06:0952 min20 Oct
Suva23:05 → 23:0905:350 min05:3550 min20 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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