Ruling · Dāmodara Dvādaśī · 1903

Tuesday 4 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 131 minutes.

Decide it for

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 4 August

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 5 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 07:39 on Tue 4 Aug to 09:49 on Wed 5 Aug.

    1903-08-03T23:38:52Z → 1903-08-05T01:48:42Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 4th, 12:00–12:48 on the 5th.

    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 4th and 0 of 48 on the 5th.

    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 7867 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 1903: Tuesday 4 August.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 1903 falls on Tuesday 4 August. Dvādaśī runs from 07:39 on Tue 4 Aug to 09:49 on Wed 5 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1903/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 4 Aug
Ahargaṇa, classicalDisc centre, no refractionTue 4 Aug
compat-drikpanchangComparison profileTue 4 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/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 3rdCoveredMadhyāhna 5thCoveredRuled
Los Angeles15:39 → 17:4911:350 min11:350 min4 Aug
Chicago17:39 → 19:4911:320 min11:320 min4 Aug
Jersey City18:39 → 20:4911:380 min11:380 min4 Aug
Port of Spain19:39 → 21:4911:480 min11:480 min4 Aug
London23:39 → 01:4911:420 min11:420 min4 Aug
Durban01:39 → 03:4911:380 min11:380 min4 Aug
Dubai03:20 → 05:3011:420 min11:420 min4 Aug
Delhi05:00 → 07:1011:540 min11:540 min4 Aug
Kolkata05:00 → 07:1011:100 min11:090 min4 Aug
Singapore06:34 → 08:4411:420 min11:420 min4 Aug
Sydney09:39 → 11:4911:370 min11:3711 min4 Aug
Suva11:34 → 13:4411:430 min11:4348 min4 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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