Ruling · Mitra Saptamī · 2004

Saturday 18 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 26 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 Friday 17 December

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:50  12:38 madhyāhna ends
11:0211:2611:5012:1412:3813:0213:26

0 of 48 minutes covered

Midday of Saturday 18 December

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:51  12:39 madhyāhna ends
Saptamī ends 13:04:23
11:0311:2711:5112:1512:3913:0313:27

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 14:27 on Fri 17 Dec to 13:04 on Sat 18 Dec.

    2004-12-17T06:27:25Z → 2004-12-18T05:04:24Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:50–12:38 on the 17th, 11:51–12:39 on the 18th.

    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 17th and 48 of 48 on the 18th.

    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 1536 s

  5. 05

    Ruling

    Mitra Saptamī, Baoding, 2004: Saturday 18 December.

    confidence: determinate

Say it like this

In Baoding, Mitra Saptamī 2004 falls on Saturday 18 December. Saptamī runs from 14:27 on Fri 17 Dec to 13:04 on Sat 18 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2004/mitra-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 18 Dec
Ahargaṇa, classicalDisc centre, no refractionSat 18 Dec
compat-drikpanchangComparison profileSat 18 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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles22:27 → 21:0411:2548 min11:260 min17 Dec
Chicago00:27 → 23:0411:2348 min11:240 min17 Dec
Jersey City01:27 → 00:0411:2948 min11:290 min17 Dec
Port of Spain02:27 → 01:0411:3848 min11:390 min17 Dec
London06:27 → 05:0411:3348 min11:330 min17 Dec
Durban08:27 → 07:0411:2848 min11:290 min17 Dec
Dubai10:27 → 09:0411:5148 min11:510 min17 Dec
Delhi11:57 → 10:3411:5344 min11:540 min17 Dec
Kolkata11:57 → 10:3411:090 min11:090 min18 Dec
Singapore14:27 → 13:0412:370 min12:3727 min18 Dec
Sydney17:27 → 16:0412:270 min12:2848 min18 Dec
Suva18:27 → 17:0411:380 min11:3948 min18 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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