Ruling · Ṛṣi Tarpaṇa · 2012

Thursday 2 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 33 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 Wednesday 1 August

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 12:00  12:48 madhyāhna ends
Pūrṇimā begins 13:28:35
11:1211:3612:0012:2412:4813:1213:36

0 of 48 minutes covered

Midday of Thursday 2 August

Taken. Pūrṇimā reaches neither midday; the rule takes the second day.

madhyāhna begins 12:00  12:48 madhyāhna ends
Pūrṇimā ends 11:27:27
11:1211:3612:0012:2412:4813:1213:36

0 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 13:29 on Wed 1 Aug to 11:27 on Thu 2 Aug.

    2012-08-01T05:28:36Z → 2012-08-02T03:27:27Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 1st, 12:00–12:48 on the 2nd.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pūrṇimā must be present during madhyāhna. It covers 0 of 48 minutes on the 1st and 0 of 48 on the 2nd.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: unstated → second-day · margin 1959 s

  5. 05

    Ruling

    Ṛṣi Tarpaṇa, Baoding, 2012: Thursday 2 August.

    confidence: determinate

Say it like this

In Baoding, Ṛṣi Tarpaṇa 2012 falls on Thursday 2 August. Pūrṇimā runs from 13:29 on Wed 1 Aug to 11:27 on Thu 2 Aug, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/2012/rishi-tarpana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 2 Aug
Ahargaṇa, classicalDisc centre, no refractionThu 2 Aug
compat-drikpanchangComparison profileThu 2 Aug
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/rishi-tarpana · ruleset 2026.3-draft

Month
Śrāvaṇa, amānta
Pakṣa · aṅga
Śukla · Pūrṇimā
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 103

“S 15 Rakhi purnima, Naroli purnima (Cocoanut day), Raksa Bandhana (in the second half of purnima), Rsi tarpana (madhyahna vyapini), Hayagriva utpatti, Jhulanayatra samapana” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePūrṇimāMadhyāhna 1stCoveredMadhyāhna 2ndCoveredRuled
Los Angeles22:29 → 20:2712:3548 min12:350 min1 Aug
Chicago00:29 → 22:2712:3348 min12:320 min1 Aug
Jersey City01:29 → 23:2712:3848 min12:380 min1 Aug
Port of Spain01:29 → 23:2711:4848 min11:480 min1 Aug
London06:29 → 04:2712:4248 min12:420 min1 Aug
Durban07:29 → 05:2711:3848 min11:380 min1 Aug
Dubai09:29 → 07:2712:0148 min12:010 min1 Aug
Delhi10:59 → 08:5712:0348 min12:030 min1 Aug
Kolkata10:59 → 08:5711:1948 min11:190 min1 Aug
Singapore13:29 → 11:2712:476 min12:470 min1 Aug
Sydney15:29 → 13:2711:380 min11:3848 min2 Aug
Suva17:29 → 15:2711:490 min11:4948 min2 Aug
Profile · tradition
pac-rp@2026.1 · smarta
Rule
rishi-tarpana@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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