Ruling · Mitra Saptamī · 2029

Wednesday 12 December

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 24 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Tuesday 11 December

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:09  11:57 madhyāhna ends
Saptamī begins 12:21:34
10:2110:4511:0911:3311:5712:2112:45

0 of 48 minutes covered

Midday of Wednesday 12 December

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:10  11:58 madhyāhna ends
10:2210:4611:1011:3411:5812:2212:46

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 12:22 on Tue 11 Dec to 13:09 on Wed 12 Dec.

    2029-12-11T04:21:35Z → 2029-12-12T05:09:19Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:09–11:57 on the 11th, 11:10–11:58 on the 12th.

    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 11th and 48 of 48 on the 12th.

    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 1467 s

  5. 05

    Ruling

    Mitra Saptamī, Daqing, 2029: Wednesday 12 December.

    confidence: determinate

Say it like this

In Daqing, Mitra Saptamī 2029 falls on Wednesday 12 December. Saptamī runs from 12:22 on Tue 11 Dec to 13:09 on Wed 12 Dec and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2029/mitra-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 12 Dec
Ahargaṇa, classicalDisc centre, no refractionWed 12 Dec
compat-drikpanchangComparison profileTue 11 Dec
No institution has a recorded ruling for Daqing.

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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles20:22 → 21:0911:2248 min11:230 min11 Dec
Chicago22:22 → 23:0911:2048 min11:200 min11 Dec
Jersey City23:22 → 00:0911:2648 min11:260 min11 Dec
Port of Spain00:22 → 01:0911:3648 min11:360 min11 Dec
London04:22 → 05:0911:3048 min11:300 min11 Dec
Durban06:22 → 07:0911:2548 min11:260 min11 Dec
Dubai08:22 → 09:0911:4848 min11:480 min11 Dec
Delhi09:52 → 10:3911:5048 min11:510 min11 Dec
Kolkata09:52 → 10:3911:0648 min11:060 min11 Dec
Singapore12:22 → 13:0912:3448 min12:3435 min11 Dec
Sydney15:22 → 16:0912:240 min12:2548 min12 Dec
Suva16:22 → 17:0911:350 min11:3648 min12 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

About Ahargaṇa