Ruling · Dāmodara Dvādaśī · 1972

Monday 21 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 452 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 Monday 21 August

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

48 of 48 minutes covered

Midday of Tuesday 22 August

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

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 03:45 on Mon 21 Aug to 04:25 on Tue 22 Aug.

    1972-08-20T19:45:27Z → 1972-08-21T20:25:05Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 21st, 11:57–12:45 on the 22nd.

    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 21st and 0 of 48 on the 22nd.

    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 27097 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 1972: Monday 21 August.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 1972 falls on Monday 21 August. Dvādaśī runs from 03:45 on Mon 21 Aug to 04:25 on Tue 22 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1972/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 21 Aug
Ahargaṇa, classicalDisc centre, no refractionMon 21 Aug
compat-drikpanchangComparison profileMon 21 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 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles12:45 → 13:2512:3234 min12:3248 min20 Aug
Chicago14:45 → 15:2512:290 min12:2948 min21 Aug
Jersey City15:45 → 16:2512:350 min12:3548 min21 Aug
Port of Spain15:45 → 16:2511:450 min11:4548 min21 Aug
London20:45 → 21:2512:390 min12:3948 min21 Aug
Durban21:45 → 22:2511:350 min11:3548 min21 Aug
Dubai23:45 → 00:2511:580 min11:5848 min21 Aug
Delhi01:15 → 01:5512:000 min12:0048 min21 Aug
Kolkata01:15 → 01:5511:160 min11:1548 min21 Aug
Singapore03:15 → 03:5512:140 min12:1448 min21 Aug
Sydney05:45 → 06:2511:350 min11:3548 min21 Aug
Suva07:45 → 08:2511:460 min11:4648 min21 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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