Ruling · Dāmodara Dvādaśī · 2001

Tuesday 31 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 253 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 31 July

Taken. The only midday Dvādaśī reaches.

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

48 of 48 minutes covered

Midday of Wednesday 1 August

Dvādaśī is absent from madhyāhna. Not taken.

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

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 06:25 on Tue 31 Jul to 07:47 on Wed 1 Aug.

    2001-07-30T22:25:24Z → 2001-07-31T23:47:23Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 31st, 12:00–12:48 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 15169 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 2001: Tuesday 31 July.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 2001 falls on Tuesday 31 July. Dvādaśī runs from 06:25 on Tue 31 Jul to 07:47 on Wed 1 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2001/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 30thCoveredMadhyāhna 31stCoveredRuled
Los Angeles15:25 → 16:4712:350 min12:3548 min31 Jul
Chicago17:25 → 18:4712:330 min12:3348 min31 Jul
Jersey City18:25 → 19:4712:380 min12:3848 min31 Jul
Port of Spain18:25 → 19:4711:480 min11:4848 min31 Jul
London23:25 → 00:4712:420 min12:4248 min31 Jul
Durban00:25 → 01:4711:380 min11:3848 min31 Jul
Dubai02:25 → 03:4712:010 min12:0148 min31 Jul
Delhi03:55 → 05:1712:030 min12:0348 min31 Jul
Kolkata03:55 → 05:1711:190 min11:1948 min31 Jul
Singapore06:25 → 07:4712:470 min12:4748 min31 Jul
Sydney08:25 → 09:4711:380 min11:3848 min31 Jul
Suva10:25 → 11:4711:490 min11:4948 min31 Jul
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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