Ruling · Mitra Saptamī · 1999

Wednesday 15 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 449 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 14 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 Wednesday 15 December

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:49  12:37 madhyāhna ends
11:0111:2511:4912:1312:3713:0113:25

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 20:05 on Tue 14 Dec to 20:47 on Wed 15 Dec.

    1999-12-14T12:05:00Z → 1999-12-15T12:46:52Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 14th, 11:49–12:37 on the 15th.

    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 14th and 48 of 48 on the 15th.

    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 26915 s

  5. 05

    Ruling

    Mitra Saptamī, Baoding, 1999: Wednesday 15 December.

    confidence: determinate

Say it like this

In Baoding, Mitra Saptamī 1999 falls on Wednesday 15 December. Saptamī runs from 20:05 on Tue 14 Dec to 20:47 on Wed 15 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1999/mitra-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 15 Dec
Ahargaṇa, classicalDisc centre, no refractionWed 15 Dec
compat-drikpanchangComparison profileWed 15 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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles04:05 → 04:4711:2448 min11:240 min14 Dec
Chicago06:05 → 06:4711:2148 min11:220 min14 Dec
Jersey City07:05 → 07:4711:2748 min11:270 min14 Dec
Port of Spain08:05 → 08:4711:3748 min11:370 min14 Dec
London12:05 → 12:4711:3114 min11:3148 min14 Dec
Durban14:05 → 14:4711:260 min11:2748 min15 Dec
Dubai16:05 → 16:4711:490 min11:5048 min15 Dec
Delhi17:35 → 18:1711:510 min11:5248 min15 Dec
Kolkata17:35 → 18:1711:070 min11:0748 min15 Dec
Singapore20:05 → 20:4712:350 min12:3548 min15 Dec
Sydney23:05 → 23:4712:260 min12:2648 min15 Dec
Suva01:05 → 01:4712:370 min12:3748 min15 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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