Ruling · Ṛṣi Pañcamī · 2091

Monday 17 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 437 minutes.

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 Monday 17 September

Taken. The only midday Pañcamī reaches.

madhyāhna begins 11:49  12:37 madhyāhna ends
11:0111:2511:4912:1312:3713:0113:25

48 of 48 minutes covered

Midday of Tuesday 18 September

Pañcamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:48  12:36 madhyāhna ends
11:0011:2411:4812:1212:3613:0013:24

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 04:32 on Mon 17 Sep to 01:36 on Tue 18 Sep.

    2091-09-16T20:31:40Z → 2091-09-17T17:35:44Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 17th, 11:48–12:36 on the 18th.

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

  3. 03

    Rule

    Pañcamī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.

    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 26222 s

  5. 05

    Ruling

    Ṛṣi Pañcamī, Baoding, 2091: Monday 17 September.

    confidence: determinate

Say it like this

In Baoding, Ṛṣi Pañcamī 2091 falls on Monday 17 September. Pañcamī runs from 04:32 on Mon 17 Sep to 01:36 on Tue 18 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2091/rishi-panchami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 17 Sep
Ahargaṇa, classicalDisc centre, no refractionMon 17 Sep
compat-drikpanchangComparison profileMon 17 Sep
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 16thCoveredMadhyāhna 17thCoveredRuled
Los Angeles13:32 → 10:3612:240 min12:230 min17 Sep
Chicago15:32 → 12:3612:210 min12:2115 min17 Sep
Jersey City16:32 → 13:3612:270 min12:2748 min17 Sep
Port of Spain16:32 → 13:3611:370 min11:3748 min17 Sep
London21:32 → 18:3612:310 min12:3148 min17 Sep
Durban22:32 → 19:3611:270 min11:2748 min17 Sep
Dubai00:32 → 21:3611:500 min11:4948 min17 Sep
Delhi02:02 → 23:0611:520 min11:5248 min17 Sep
Kolkata02:02 → 23:0611:080 min11:0748 min17 Sep
Singapore04:32 → 01:3612:360 min12:3548 min17 Sep
Sydney06:32 → 03:3611:270 min11:2648 min17 Sep
Suva08:32 → 05:3611:380 min11:3748 min17 Sep
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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