Ruling · Mitra Saptamī · 2002

Tuesday 10 December

Boundaryin Daegu, under the Rashtriya Panchang method. A threshold is only 3 min 48 s away. Say “contested”.

Decide it for

DaeguDelhiKolkataSingaporeSydneyJersey City

35°52′ N 128°36′ E · Asia/Seoul · GeoNames 1835329

The two middays

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

Midday of Tuesday 10 December

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:54  12:42 madhyāhna ends
11:0611:3011:5412:1812:4213:0613:30

48 of 48 minutes covered

Midday of Wednesday 11 December

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:55  12:43 madhyāhna ends
Saptamī ends 11:50:46
11:0711:3111:5512:1912:4313:0713:31

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 10:23 on Tue 10 Dec to 11:51 on Wed 11 Dec.

    2002-12-10T01:22:50Z → 2002-12-11T02:50:46Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 10th, 11:55–12:43 on the 11th.

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

  3. 03

    Rule

    Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 10th and 0 of 48 on the 11th.

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

  4. 04

    Tie-break

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

    priority: purvaviddha → only-day · margin 228 s < 300 s

  5. 05

    Ruling

    Mitra Saptamī, Daegu, 2002: Tuesday 10 December.

    confidence: boundary (margin)

Say it like this

In Daegu, Mitra Saptamī 2002 falls on Tuesday 10 December. Saptamī runs from 10:23 on Tue 10 Dec to 11:51 on Wed 11 Dec and covers all of madhyāhna that midday. It is 3 min 48 s from a threshold: treat the date as contested.

ahargana.org/daegu/festivals/2002/mitra-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 10 Dec
Ahargaṇa, classicalDisc centre, no refractionTue 10 Dec
compat-drikpanchangComparison profileTue 10 Dec
No institution has a recorded ruling for Daegu.

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 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles17:23 → 18:5111:2248 min11:220 min10 Dec
Chicago19:23 → 20:5111:1948 min11:200 min10 Dec
Jersey City20:23 → 21:5111:2548 min11:260 min10 Dec
Port of Spain21:23 → 22:5111:3548 min11:350 min10 Dec
London01:23 → 02:5111:2948 min11:300 min10 Dec
Durban03:23 → 04:5111:2548 min11:250 min10 Dec
Dubai05:23 → 06:5111:4748 min11:480 min10 Dec
Delhi06:53 → 08:2111:5048 min11:500 min10 Dec
Kolkata06:53 → 08:2111:0548 min11:060 min10 Dec
Singapore09:23 → 10:5112:3348 min12:340 min10 Dec
Sydney12:23 → 13:5112:2448 min12:2448 min10 Dec
Suva13:23 → 14:5111:350 min11:3548 min11 Dec
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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