Ruling · Mitra Saptamī · 1997

Saturday 6 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 417 minutes.

Decide it for

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 Saturday 6 December

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:45  12:33 madhyāhna ends
10:5711:2111:4512:0912:3312:5713:21

48 of 48 minutes covered

Midday of Sunday 7 December

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:45  12:33 madhyāhna ends
10:5711:2111:4512:0912:3312:5713:21

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 04:48 on Sat 6 Dec to 03:05 on Sun 7 Dec.

    1997-12-05T20:48:27Z → 1997-12-06T19:04:54Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 6th, 11:45–12:33 on the 7th.

    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 6th and 0 of 48 on the 7th.

    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 24993 s

  5. 05

    Ruling

    Mitra Saptamī, Baoding, 1997: Saturday 6 December.

    confidence: determinate

Say it like this

In Baoding, Mitra Saptamī 1997 falls on Saturday 6 December. Saptamī runs from 04:48 on Sat 6 Dec to 03:05 on Sun 7 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1997/mitra-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 6 Dec
Ahargaṇa, classicalDisc centre, no refractionSat 6 Dec
compat-drikpanchangComparison profileSat 6 Dec
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/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 5thCoveredMadhyāhna 6thCoveredRuled
Los Angeles12:48 → 11:0511:200 min11:200 min6 Dec
Chicago14:48 → 13:0511:170 min11:1848 min6 Dec
Jersey City15:48 → 14:0511:230 min11:2348 min6 Dec
Port of Spain16:48 → 15:0511:330 min11:3348 min6 Dec
London20:48 → 19:0511:270 min11:2748 min6 Dec
Durban22:48 → 21:0511:230 min11:2348 min6 Dec
Dubai00:48 → 23:0511:450 min11:4648 min6 Dec
Delhi02:18 → 00:3511:480 min11:4848 min6 Dec
Kolkata02:18 → 00:3511:030 min11:0348 min6 Dec
Singapore04:48 → 03:0512:310 min12:3248 min6 Dec
Sydney07:48 → 06:0512:220 min12:2248 min6 Dec
Suva08:48 → 07:0511:330 min11:3348 min6 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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