Ruling · Dāmodara Dvādaśī · 2096

Tuesday 31 July

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 4 min 27 s away. Say “contested”.

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 31 July

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 12:01  12:49 madhyāhna ends
11:1311:3712:0112:2512:4913:1313:37

48 of 48 minutes covered

Midday of Wednesday 1 August

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 12:01  12:49 madhyāhna ends
Dvādaśī ends 11:56:13
11:1311:3712:0112:2512:4913:1313:37

0 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 10:20 on Tue 31 Jul to 11:56 on Wed 1 Aug.

    2096-07-31T02:19:52Z → 2096-08-01T03:56:13Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:01–12:49 on the 31st, 12:01–12:49 on the 1st.

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

  3. 03

    Rule

    Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 31st and 0 of 48 on the 1st.

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

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 267 s < 300 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 2096: Tuesday 31 July.

    confidence: boundary (margin)

Say it like this

In Baoding, Dāmodara Dvādaśī 2096 falls on Tuesday 31 July. Dvādaśī runs from 10:20 on Tue 31 Jul to 11:56 on Wed 1 Aug and covers all of madhyāhna that midday. It is 4 min 27 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/2096/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 31 Jul
Ahargaṇa, classicalDisc centre, no refractionTue 31 Jul
compat-drikpanchangComparison profileTue 31 Jul
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/damodara-dvadashi · ruleset 2026.3-draft

Month
Śrāvaṇa, amānta
Pakṣa · aṅga
Śukla · Dvādaśī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 103

“S 12 Buddha dvadasi, Damodara dvadasi (purvaviddha), Visnu-pavitraropana.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceDvādaśīMadhyāhna 31stCoveredMadhyāhna 1stCoveredRuled
Los Angeles19:20 → 20:5612:3648 min12:350 min31 Jul
Chicago21:20 → 22:5612:3348 min12:330 min31 Jul
Jersey City22:20 → 23:5612:3948 min12:390 min31 Jul
Port of Spain22:20 → 23:5611:4948 min11:490 min31 Jul
London03:20 → 04:5612:4348 min12:430 min31 Jul
Durban04:20 → 05:5611:3948 min11:390 min31 Jul
Dubai06:20 → 07:5612:0148 min12:010 min31 Jul
Delhi07:50 → 09:2612:0448 min12:040 min31 Jul
Kolkata07:50 → 09:2611:1948 min11:190 min31 Jul
Singapore10:20 → 11:5612:4748 min12:470 min31 Jul
Sydney12:20 → 13:5611:386 min11:3848 min31 Jul
Suva14:20 → 15:5611:490 min11:4948 min1 Aug
Profile · tradition
pac-rp@2026.1 · smarta
Rule
damodara-dvadashi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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