Ruling · Dāmodara Dvādaśī · 1937

Wednesday 18 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 229 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 Wednesday 18 August

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:58  12:46 madhyāhna ends
11:1011:3411:5812:2212:4613:1013:34

48 of 48 minutes covered

Midday of Thursday 19 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 06:41 on Wed 18 Aug to 08:09 on Thu 19 Aug.

    1937-08-17T22:40:41Z → 1937-08-19T00:08:45Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 18th, 11:57–12:45 on the 19th.

    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 18th and 0 of 48 on the 19th.

    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 13725 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 1937: Wednesday 18 August.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 1937 falls on Wednesday 18 August. Dvādaśī runs from 06:41 on Wed 18 Aug to 08:09 on Thu 19 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1937/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 18 Aug
Ahargaṇa, classicalDisc centre, no refractionWed 18 Aug
compat-drikpanchangComparison profileWed 18 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 17thCoveredMadhyāhna 19thCoveredRuled
Los Angeles14:41 → 16:0911:330 min11:320 min18 Aug
Chicago17:41 → 19:0912:300 min12:300 min18 Aug
Jersey City18:41 → 20:0912:360 min12:360 min18 Aug
Port of Spain18:41 → 20:0911:460 min11:460 min18 Aug
London23:41 → 01:0912:400 min12:400 min18 Aug
Durban00:41 → 02:0911:360 min11:360 min18 Aug
Dubai02:41 → 04:0911:590 min11:580 min18 Aug
Delhi04:11 → 05:3912:010 min12:010 min18 Aug
Kolkata04:11 → 05:3911:160 min11:160 min18 Aug
Singapore06:01 → 07:2912:050 min12:040 min18 Aug
Sydney08:41 → 10:0911:350 min11:350 min18 Aug
Suva10:41 → 12:0911:470 min11:4623 min18 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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