Ruling · Dāmodara Dvādaśī · 1928

Monday 27 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 22 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 27 August

Taken. Both middays qualify; the rule takes the first.

madhyāhna begins 11:55  12:43 madhyāhna ends
Dvādaśī begins 11:33:01
11:0711:3111:5512:1912:4313:0713:31

48 of 48 minutes covered

Midday of Tuesday 28 August

Qualifies with 24 of 48 minutes. Not taken.

madhyāhna begins 11:55  12:43 madhyāhna ends
Dvādaśī ends 12:19:11
11:0711:3111:5512:1912:4313:0713:31

24 of 48 minutes covered, the first 24

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 11:33 on Mon 27 Aug to 12:19 on Tue 28 Aug.

    1928-08-27T03:33:02Z → 1928-08-28T04:19:11Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 27th, 11:55–12:43 on the 28th.

    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 27th and 24 of 48 on the 28th.

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

  4. 04

    Tie-break

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 1342 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 1928: Monday 27 August.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 1928 falls on Monday 27 August. Dvādaśī runs from 11:33 on Mon 27 Aug to 12:19 on Tue 28 Aug and covers all of madhyāhna that midday. It also reaches the next midday for 24 minutes; by the rule the first midday is taken.

ahargana.org/baoding/festivals/1928/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 27 Aug
Ahargaṇa, classicalDisc centre, no refractionMon 27 Aug
compat-drikpanchangComparison profileMon 27 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 27thCoveredMadhyāhna 28thCoveredRuled
Los Angeles19:33 → 20:1911:3048 min11:300 min27 Aug
Chicago22:33 → 23:1912:2848 min12:270 min27 Aug
Jersey City23:33 → 00:1912:3348 min12:330 min27 Aug
Port of Spain23:33 → 00:1911:4348 min11:430 min27 Aug
London04:33 → 05:1912:3748 min12:370 min27 Aug
Durban05:33 → 06:1911:3448 min11:330 min27 Aug
Dubai07:33 → 08:1911:5648 min11:560 min27 Aug
Delhi09:03 → 09:4911:5848 min11:580 min27 Aug
Kolkata09:03 → 09:4911:1448 min11:140 min27 Aug
Singapore10:33 → 11:1911:4248 min11:420 min27 Aug
Sydney13:33 → 14:1911:330 min11:3348 min28 Aug
Suva15:33 → 16:1911:440 min11:4448 min28 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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