Ruling · Mitra Saptamī · 2003

Saturday 29 November

Boundaryin Chattogram, under the Rashtriya Panchang method. A threshold is only 0 min 18 s away. Say “contested”.

Decide it for

22°20′ N 91°50′ E · Asia/Dhaka · GeoNames 1205733

The two middays

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

Midday of Saturday 29 November

Taken. Both middays qualify; the rule takes the first.

madhyāhna begins 11:17  12:05 madhyāhna ends
Saptamī begins 11:56:40
10:2910:5311:1711:4112:0512:2912:53

8 of 48 minutes covered, the last 8

Midday of Sunday 30 November

Qualifies with 0 of 48 minutes. Not taken.

madhyāhna begins 11:17  12:05 madhyāhna ends
Saptamī ends 11:17:20
10:2910:5311:1711:4112:0512:2912:53

0 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 11:57 on Sat 29 Nov to 11:17 on Sun 30 Nov.

    2003-11-29T05:56:41Z → 2003-11-30T05:17:21Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:17–12:05 on the 29th, 11:17–12:05 on the 30th.

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

  3. 03

    Rule

    Saptamī must be present during madhyāhna. It covers 8 of 48 minutes on the 29th and 0 of 48 on the 30th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 18 s < 300 s

  5. 05

    Ruling

    Mitra Saptamī, Chattogram, 2003: Saturday 29 November.

    confidence: boundary (margin)

Say it like this

In Chattogram, Mitra Saptamī 2003 falls on Saturday 29 November. Saptamī runs from 11:57 on Sat 29 Nov to 11:17 on Sun 30 Nov and covers 8 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 0 minutes; by the rule the first midday is taken. It is 0 min 18 s from a threshold: treat the date as contested.

ahargana.org/chattogram/festivals/2003/mitra-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 29 Nov
Ahargaṇa, classicalDisc centre, no refractionSat 29 Nov
compat-drikpanchangComparison profileSat 29 Nov
No institution has a recorded ruling for Chattogram.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/mitra-saptami · ruleset 2026.3-draft

Month
Mārgaśīrṣa, amānta
Pakṣa · aṅga
Śukla · Saptamī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 104

“S 7 Mitra saptami (purvaviddha).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceSaptamīMadhyāhna 29thCoveredMadhyāhna 30thCoveredRuled
Los Angeles21:57 → 21:1711:1748 min11:180 min29 Nov
Chicago23:57 → 23:1711:1548 min11:150 min29 Nov
Jersey City00:57 → 00:1711:2048 min11:210 min29 Nov
Port of Spain01:57 → 01:1711:3048 min11:310 min29 Nov
London05:57 → 05:1711:2448 min11:250 min29 Nov
Durban07:57 → 07:1711:2048 min11:210 min29 Nov
Dubai09:57 → 09:1711:4348 min11:430 min29 Nov
Delhi11:27 → 10:4711:4548 min11:450 min29 Nov
Kolkata11:27 → 10:4711:0122 min11:010 min29 Nov
Singapore13:57 → 13:1712:290 min12:2948 min30 Nov
Sydney16:57 → 16:1712:190 min12:2048 min30 Nov
Suva17:57 → 17:1711:300 min11:3148 min30 Nov
Profile · tradition
pac-rp@2026.1 · smarta
Rule
mitra-saptami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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