Ruling · Mitra Saptamī · 1923

Friday 14 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 520 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 Thursday 13 December

Saptamī 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

Midday of Friday 14 December

Taken. The only midday Saptamī reaches.

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

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 21:16 on Thu 13 Dec to 21:59 on Fri 14 Dec.

    1923-12-13T13:15:44Z → 1923-12-14T13:58:40Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 13th, 11:48–12:36 on the 14th.

    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 13th and 48 of 48 on the 14th.

    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 31194 s

  5. 05

    Ruling

    Mitra Saptamī, Baoding, 1923: Friday 14 December.

    confidence: determinate

Say it like this

In Baoding, Mitra Saptamī 1923 falls on Friday 14 December. Saptamī runs from 21:16 on Thu 13 Dec to 21:59 on Fri 14 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1923/mitra-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 14 Dec
Ahargaṇa, classicalDisc centre, no refractionFri 14 Dec
compat-drikpanchangComparison profileFri 14 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 13thCoveredMadhyāhna 14thCoveredRuled
Los Angeles05:16 → 05:5911:2348 min11:230 min13 Dec
Chicago07:16 → 07:5911:2148 min11:210 min13 Dec
Jersey City08:16 → 08:5911:2648 min11:270 min13 Dec
Port of Spain09:16 → 09:5911:3648 min11:370 min13 Dec
London13:16 → 13:5911:300 min11:3148 min14 Dec
Durban15:16 → 15:5911:260 min11:2648 min14 Dec
Dubai17:16 → 17:5911:490 min11:4948 min14 Dec
Delhi18:46 → 19:2911:510 min11:5148 min14 Dec
Kolkata18:46 → 19:2911:060 min11:0748 min14 Dec
Singapore20:16 → 20:5911:340 min11:3548 min14 Dec
Sydney23:16 → 23:5911:250 min11:2548 min14 Dec
Suva01:16 → 01:5911:360 min11:3648 min14 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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