Ruling · Mitra Saptamī · 1953

Sunday 13 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 52 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 Saturday 12 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 Sunday 13 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 15:12 on Sat 12 Dec to 13:28 on Sun 13 Dec.

    1953-12-12T07:11:55Z → 1953-12-13T05:28:13Z

  2. 02

    Kāla

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

    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 12th and 48 of 48 on the 13th.

    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 3125 s

  5. 05

    Ruling

    Mitra Saptamī, Baoding, 1953: Sunday 13 December.

    confidence: determinate

Say it like this

In Baoding, Mitra Saptamī 1953 falls on Sunday 13 December. Saptamī runs from 15:12 on Sat 12 Dec to 13:28 on Sun 13 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1953/mitra-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 13 Dec
Ahargaṇa, classicalDisc centre, no refractionSun 13 Dec
compat-drikpanchangComparison profileSun 13 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles23:12 → 21:2811:2348 min11:230 min12 Dec
Chicago01:12 → 23:2811:2048 min11:210 min12 Dec
Jersey City02:12 → 00:2811:2648 min11:270 min12 Dec
Port of Spain03:12 → 01:2811:3648 min11:360 min12 Dec
London07:12 → 05:2811:3048 min11:310 min12 Dec
Durban09:12 → 07:2811:2648 min11:260 min12 Dec
Dubai11:12 → 09:2811:4848 min11:490 min12 Dec
Delhi12:42 → 10:5811:510 min11:510 min13 Dec
Kolkata12:42 → 10:5811:060 min11:070 min13 Dec
Singapore14:42 → 12:5812:040 min12:0548 min13 Dec
Sydney17:12 → 15:2811:250 min11:2548 min13 Dec
Suva19:12 → 17:2811:360 min11:3648 min13 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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