Ruling · Dāmodara Dvādaśī · 1913

Wednesday 13 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 600 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 12 August

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

0 of 48 minutes covered

Midday of Wednesday 13 August

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

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 22:47 on Tue 12 Aug to 23:34 on Wed 13 Aug.

    1913-08-12T14:46:57Z → 1913-08-13T15:33:39Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 12th, 11:59–12:47 on the 13th.

    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 12th and 48 of 48 on the 13th.

    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 36005 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 1913: Wednesday 13 August.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 1913 falls on Wednesday 13 August. Dvādaśī runs from 22:47 on Tue 12 Aug to 23:34 on Wed 13 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1913/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 13 Aug
Ahargaṇa, classicalDisc centre, no refractionWed 13 Aug
compat-drikpanchangComparison profileWed 13 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles06:47 → 07:3411:3448 min11:330 min12 Aug
Chicago08:47 → 09:3411:3148 min11:310 min12 Aug
Jersey City09:47 → 10:3411:3748 min11:370 min12 Aug
Port of Spain10:47 → 11:3411:4748 min11:470 min12 Aug
London14:47 → 15:3411:410 min11:4148 min13 Aug
Durban16:47 → 17:3411:370 min11:3748 min13 Aug
Dubai18:28 → 19:1511:410 min11:4048 min13 Aug
Delhi20:17 → 21:0412:020 min12:0248 min13 Aug
Kolkata20:17 → 21:0411:170 min11:1748 min13 Aug
Singapore21:47 → 22:3411:460 min11:4548 min13 Aug
Sydney00:47 → 01:3411:360 min11:3648 min13 Aug
Suva02:42 → 03:2911:420 min11:4248 min13 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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