Ruling · Mitra Saptamī · 1951

Wednesday 5 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 26 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 Tuesday 4 December

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:44  12:32 madhyāhna ends
10:5611:2011:4412:0812:3212:5613:20

0 of 48 minutes covered

Midday of Wednesday 5 December

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:44  12:32 madhyāhna ends
Saptamī ends 12:58:01
10:5611:2011:4412:0812:3212:5613:20

48 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 14:39 on Tue 4 Dec to 12:58 on Wed 5 Dec.

    1951-12-04T06:39:16Z → 1951-12-05T04:58:02Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:44–12:32 on the 4th, 11:44–12:32 on the 5th.

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

  3. 03

    Rule

    Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 4th and 48 of 48 on the 5th.

    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 1543 s

  5. 05

    Ruling

    Mitra Saptamī, Baoding, 1951: Wednesday 5 December.

    confidence: determinate

Say it like this

In Baoding, Mitra Saptamī 1951 falls on Wednesday 5 December. Saptamī runs from 14:39 on Tue 4 Dec to 12:58 on Wed 5 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1951/mitra-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 5 Dec
Ahargaṇa, classicalDisc centre, no refractionWed 5 Dec
compat-drikpanchangComparison profileWed 5 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 4thCoveredMadhyāhna 5thCoveredRuled
Los Angeles22:39 → 20:5811:1948 min11:190 min4 Dec
Chicago00:39 → 22:5811:1748 min11:170 min4 Dec
Jersey City01:39 → 23:5811:2248 min11:230 min4 Dec
Port of Spain02:39 → 00:5811:3248 min11:330 min4 Dec
London06:39 → 04:5811:2648 min11:270 min4 Dec
Durban08:39 → 06:5811:2248 min11:220 min4 Dec
Dubai10:39 → 08:5811:4548 min11:450 min4 Dec
Delhi12:09 → 10:2811:4726 min11:470 min4 Dec
Kolkata12:09 → 10:2811:020 min11:030 min5 Dec
Singapore14:09 → 12:2812:000 min12:0127 min5 Dec
Sydney16:39 → 14:5811:210 min11:2248 min5 Dec
Suva18:39 → 16:5811:320 min11:3348 min5 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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