Ruling · Dāmodara Dvādaśī · 2087

Monday 11 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 143 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 Sunday 10 August

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 12:00  12:48 madhyāhna ends
11:1211:3612:0012:2412:4813:1213:36

0 of 48 minutes covered

Midday of Monday 11 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 15:11 on Sun 10 Aug to 16:07 on Mon 11 Aug.

    2087-08-10T07:10:56Z → 2087-08-11T08:06:56Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 10th, 11:59–12:47 on the 11th.

    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 10th and 48 of 48 on the 11th.

    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 8599 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 2087: Monday 11 August.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 2087 falls on Monday 11 August. Dvādaśī runs from 15:11 on Sun 10 Aug to 16:07 on Mon 11 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2087/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 11 Aug
Ahargaṇa, classicalDisc centre, no refractionMon 11 Aug
compat-drikpanchangComparison profileMon 11 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 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles00:11 → 01:0712:3448 min12:340 min10 Aug
Chicago02:11 → 03:0712:3248 min12:320 min10 Aug
Jersey City03:11 → 04:0712:3848 min12:380 min10 Aug
Port of Spain03:11 → 04:0711:4848 min11:480 min10 Aug
London08:11 → 09:0712:4248 min12:420 min10 Aug
Durban09:11 → 10:0711:3848 min11:380 min10 Aug
Dubai11:11 → 12:0712:0048 min12:007 min10 Aug
Delhi12:41 → 13:3712:0310 min12:0248 min10 Aug
Kolkata12:41 → 13:3711:180 min11:1848 min11 Aug
Singapore15:11 → 16:0712:460 min12:4648 min11 Aug
Sydney17:11 → 18:0711:370 min11:3748 min11 Aug
Suva19:11 → 20:0711:480 min11:4848 min11 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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