Ruling · Ṛṣi Pañcamī · 2055

Thursday 26 August

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 0 min 42 s away. Say “contested”.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Thursday 26 August

Taken. The only midday Pañcamī reaches.

madhyāhna begins 11:56  12:44 madhyāhna ends
Pañcamī begins 12:43:09
11:0811:3211:5612:2012:4413:0813:32

1 of 48 minutes covered, the last 1

Midday of Friday 27 August

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:56  12:44 madhyāhna ends
11:0811:3211:5612:2012:4413:0813:32

0 of 48 minutes covered

Pañcamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pañcamī runs from 12:43 on Thu 26 Aug to 09:47 on Fri 27 Aug.

    2055-08-26T04:43:09Z → 2055-08-27T01:47:06Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 26th, 11:56–12:44 on the 27th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pañcamī must be present during madhyāhna. It covers 1 of 48 minutes on the 26th and 0 of 48 on the 27th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: disputed → only-day · margin 42 s < 300 s

  5. 05

    Ruling

    Ṛṣi Pañcamī, Baoding, 2055: Thursday 26 August.

    confidence: boundary (margin)

Say it like this

In Baoding, Ṛṣi Pañcamī 2055 falls on Thursday 26 August. Pañcamī runs from 12:43 on Thu 26 Aug to 09:47 on Fri 27 Aug and covers 1 of 48 minutes of madhyāhna that midday. It is 0 min 42 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/2055/rishi-panchami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 26 Aug
Ahargaṇa, classicalDisc centre, no refractionThu 26 Aug
compat-drikpanchangComparison profileThu 26 Aug
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/rishi-panchami · ruleset 2026.3-draft

Month
Bhādrapada, amānta
Pakṣa · aṅga
Śukla · Pañcamī
Kāla
Madhyāhna
Priority
Disputed
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 103

“S 5 Rsi pancami (madhyahnavyapini) — If occurs on two successive days, it is to be observed according to Madhava on the 1st day and according to Hemadri and Divodasa on the 2nd day” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePañcamīMadhyāhna 26thCoveredMadhyāhna 27thCoveredRuled
Los Angeles21:43 → 18:4712:3148 min12:300 min26 Aug
Chicago23:43 → 20:4712:2848 min12:280 min26 Aug
Jersey City00:43 → 21:4712:3448 min12:340 min26 Aug
Port of Spain00:43 → 21:4711:4448 min11:440 min26 Aug
London05:43 → 02:4712:3848 min12:380 min26 Aug
Durban06:43 → 03:4711:3448 min11:340 min26 Aug
Dubai08:43 → 05:4711:5748 min11:560 min26 Aug
Delhi10:13 → 07:1711:5948 min11:590 min26 Aug
Kolkata10:13 → 07:1711:1448 min11:140 min26 Aug
Singapore12:43 → 09:4712:4347 min12:420 min26 Aug
Sydney14:43 → 11:4711:330 min11:3314 min27 Aug
Suva16:43 → 13:4711:440 min11:4448 min27 Aug
Profile · tradition
pac-rp@2026.1 · smarta
Rule
rishi-panchami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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