Ruling · Mitra Saptamī · 1975

Tuesday 9 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 139 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 Tuesday 9 December

Taken. The only midday Saptamī reaches.

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

48 of 48 minutes covered

Midday of Wednesday 10 December

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:47  12:35 madhyāhna ends
10:5911:2311:4712:1112:3512:5913:23

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 07:25 on Tue 9 Dec to 09:28 on Wed 10 Dec.

    1975-12-08T23:25:04Z → 1975-12-10T01:27:52Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 9th, 11:47–12:35 on the 10th.

    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 9th and 0 of 48 on the 10th.

    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 8320 s

  5. 05

    Ruling

    Mitra Saptamī, Baoding, 1975: Tuesday 9 December.

    confidence: determinate

Say it like this

In Baoding, Mitra Saptamī 1975 falls on Tuesday 9 December. Saptamī runs from 07:25 on Tue 9 Dec to 09:28 on Wed 10 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1975/mitra-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 9 Dec
Ahargaṇa, classicalDisc centre, no refractionTue 9 Dec
compat-drikpanchangComparison profileTue 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 10thCoveredRuled
Los Angeles15:25 → 17:2811:210 min11:220 min9 Dec
Chicago17:25 → 19:2811:180 min11:190 min9 Dec
Jersey City18:25 → 20:2811:240 min11:250 min9 Dec
Port of Spain19:25 → 21:2811:340 min11:350 min9 Dec
London23:25 → 01:2811:280 min11:290 min9 Dec
Durban01:25 → 03:2811:240 min11:250 min9 Dec
Dubai03:25 → 05:2811:460 min11:470 min9 Dec
Delhi04:55 → 06:5811:490 min11:500 min9 Dec
Kolkata04:55 → 06:5811:040 min11:050 min9 Dec
Singapore06:55 → 08:5812:020 min12:030 min9 Dec
Sydney10:25 → 12:2812:230 min12:244 min9 Dec
Suva11:25 → 13:2811:340 min11:3548 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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