Ruling · Dāmodara Dvādaśī · 1991

Wednesday 21 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 31 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 21 August

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 12:57  13:45 madhyāhna ends
12:0912:3312:5713:2113:4514:0914:33

48 of 48 minutes covered

Midday of Thursday 22 August

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 12:57  13:45 madhyāhna ends
Dvādaśī ends 12:26:10
12:0912:3312:5713:2113:4514:0914:33

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 09:54 on Wed 21 Aug to 12:26 on Thu 22 Aug.

    1991-08-21T00:54:29Z → 1991-08-22T03:26:11Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:57–13:45 on the 21st, 12:57–13:45 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 1843 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 1991: Wednesday 21 August.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 1991 falls on Wednesday 21 August. Dvādaśī runs from 09:54 on Wed 21 Aug to 12:26 on Thu 22 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1991/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 21 Aug
Ahargaṇa, classicalDisc centre, no refractionWed 21 Aug
compat-drikpanchangComparison profileWed 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 21stCoveredMadhyāhna 22ndCoveredRuled
Los Angeles17:54 → 20:2612:3248 min12:320 min21 Aug
Chicago19:54 → 22:2612:2948 min12:290 min21 Aug
Jersey City20:54 → 23:2612:3548 min12:350 min21 Aug
Port of Spain20:54 → 23:2611:4548 min11:450 min21 Aug
London01:54 → 04:2612:3948 min12:390 min21 Aug
Durban02:54 → 05:2611:3548 min11:350 min21 Aug
Dubai04:54 → 07:2611:5848 min11:580 min21 Aug
Delhi06:24 → 08:5612:0048 min12:000 min21 Aug
Kolkata06:24 → 08:5611:1648 min11:150 min21 Aug
Singapore08:54 → 11:2612:4448 min12:440 min21 Aug
Sydney10:54 → 13:2611:3548 min11:3448 min21 Aug
Suva12:54 → 15:2611:460 min11:4648 min22 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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