Ruling · Mitra Saptamī · 2013

Monday 9 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 5 min 35 s.

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 Sunday 8 December

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:46  12:34 madhyāhna ends
10:5811:2211:4612:1012:3412:5813:22

0 of 48 minutes covered

Midday of Monday 9 December

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:46  12:34 madhyāhna ends
Saptamī ends 11:51:56
10:5811:2211:4612:1012:3412:5813:22

6 of 48 minutes covered, the first 6

Saptamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 13:40 on Sun 8 Dec to 11:52 on Mon 9 Dec.

    2013-12-08T05:40:24Z → 2013-12-09T03:51:56Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 8th, 11:46–12:34 on the 9th.

    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 8th and 6 of 48 on the 9th.

    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 335 s

  5. 05

    Ruling

    Mitra Saptamī, Baoding, 2013: Monday 9 December.

    confidence: determinate

Say it like this

In Baoding, Mitra Saptamī 2013 falls on Monday 9 December. Saptamī runs from 13:40 on Sun 8 Dec to 11:52 on Mon 9 Dec and covers 6 of 48 minutes of madhyāhna that midday.

ahargana.org/baoding/festivals/2013/mitra-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 9 Dec
Ahargaṇa, classicalDisc centre, no refractionMon 9 Dec
compat-drikpanchangComparison profileMon 9 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 8thCoveredMadhyāhna 9thCoveredRuled
Los Angeles21:40 → 19:5211:2148 min11:210 min8 Dec
Chicago23:40 → 21:5211:1948 min11:190 min8 Dec
Jersey City00:40 → 22:5211:2448 min11:250 min8 Dec
Port of Spain01:40 → 23:5211:3448 min11:350 min8 Dec
London05:40 → 03:5211:2848 min11:290 min8 Dec
Durban07:40 → 05:5211:2448 min11:240 min8 Dec
Dubai09:40 → 07:5211:4748 min11:470 min8 Dec
Delhi11:10 → 09:2211:4948 min11:490 min8 Dec
Kolkata11:10 → 09:2211:0442 min11:050 min8 Dec
Singapore13:40 → 11:5212:320 min12:330 min9 Dec
Sydney16:40 → 14:5212:230 min12:2348 min9 Dec
Suva18:40 → 16:5212:340 min12:3548 min9 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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