Ruling · Dāmodara Dvādaśī · 1909

Saturday 28 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 572 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 Friday 27 August

Dvādaśī is absent from madhyāhna. Not taken.

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

0 of 48 minutes covered

Midday of Saturday 28 August

Taken. The only midday Dvādaśī reaches.

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

48 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 00:05 on Sat 28 Aug to 22:15 on Sat 28 Aug.

    1909-08-27T16:04:45Z → 1909-08-28T14:15:17Z

  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 0 of 48 minutes on the 27th and 48 of 48 on the 28th.

    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 34326 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 1909: Saturday 28 August.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 1909 falls on Saturday 28 August. Dvādaśī runs from 00:05 on Sat 28 Aug to 22:15 on Sat 28 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1909/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 28 Aug
Ahargaṇa, classicalDisc centre, no refractionSat 28 Aug
compat-drikpanchangComparison profileSat 28 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 Angeles08:05 → 06:1511:3048 min11:300 min27 Aug
Chicago10:05 → 08:1511:2848 min11:270 min27 Aug
Jersey City11:05 → 09:1511:3348 min11:330 min27 Aug
Port of Spain12:05 → 10:1511:4427 min11:430 min27 Aug
London16:05 → 14:1511:380 min11:3748 min28 Aug
Durban18:05 → 16:1511:340 min11:3348 min28 Aug
Dubai19:46 → 17:5611:370 min11:3748 min28 Aug
Delhi21:35 → 19:4511:580 min11:5848 min28 Aug
Kolkata21:35 → 19:4511:140 min11:1448 min28 Aug
Singapore23:05 → 21:1511:420 min11:4248 min28 Aug
Sydney02:05 → 00:1511:330 min11:3348 min28 Aug
Suva04:00 → 02:1011:390 min11:3948 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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