Ruling · Dāmodara Dvādaśī · 1981

Wednesday 12 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 612 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 11 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 12 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 22:59 on Tue 11 Aug to 00:17 on Thu 13 Aug.

    1981-08-11T14:58:49Z → 1981-08-12T16:17:19Z

  2. 02

    Kāla

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

    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 11th and 48 of 48 on the 12th.

    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 36707 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 1981: Wednesday 12 August.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 1981 falls on Wednesday 12 August. Dvādaśī runs from 22:59 on Tue 11 Aug to 00:17 on Thu 13 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1981/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 12 Aug
Ahargaṇa, classicalDisc centre, no refractionWed 12 Aug
compat-drikpanchangComparison profileWed 12 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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles07:59 → 09:1712:3448 min12:340 min11 Aug
Chicago09:59 → 11:1712:3148 min12:310 min11 Aug
Jersey City10:59 → 12:1712:3748 min12:370 min11 Aug
Port of Spain10:59 → 12:1711:4748 min11:4730 min11 Aug
London15:59 → 17:1712:410 min12:4148 min12 Aug
Durban16:59 → 18:1711:370 min11:3748 min12 Aug
Dubai18:59 → 20:1712:000 min12:0048 min12 Aug
Delhi20:29 → 21:4712:020 min12:0248 min12 Aug
Kolkata20:29 → 21:4711:180 min11:1748 min12 Aug
Singapore22:29 → 23:4712:160 min12:1648 min12 Aug
Sydney00:59 → 02:1711:370 min11:3648 min12 Aug
Suva02:59 → 04:1711:480 min11:4748 min12 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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