Ruling · Dāmodara Dvādaśī · 2099

Thursday 27 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 400 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 26 August

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:56  12:44 madhyāhna ends
11:0811:3211:5612:2012:4413:0813:32

0 of 48 minutes covered

Midday of Thursday 27 August

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:56  12:44 madhyāhna ends
11:0811:3211:5612:2012:4413:0813:32

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 19:25 on Wed 26 Aug to 20:26 on Thu 27 Aug.

    2099-08-26T11:24:32Z → 2099-08-27T12:25:34Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 26th, 11:56–12:44 on the 27th.

    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 26th and 48 of 48 on the 27th.

    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 24025 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 2099: Thursday 27 August.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 2099 falls on Thursday 27 August. Dvādaśī runs from 19:25 on Wed 26 Aug to 20:26 on Thu 27 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2099/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 27 Aug
Ahargaṇa, classicalDisc centre, no refractionThu 27 Aug
compat-drikpanchangComparison profileThu 27 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 26thCoveredMadhyāhna 27thCoveredRuled
Los Angeles04:25 → 05:2612:3148 min12:310 min26 Aug
Chicago06:25 → 07:2612:2848 min12:280 min26 Aug
Jersey City07:25 → 08:2612:3448 min12:340 min26 Aug
Port of Spain07:25 → 08:2611:4448 min11:440 min26 Aug
London12:25 → 13:2612:3848 min12:3848 min26 Aug
Durban13:25 → 14:2611:340 min11:3448 min27 Aug
Dubai15:25 → 16:2611:570 min11:5748 min27 Aug
Delhi16:55 → 17:5611:590 min11:5948 min27 Aug
Kolkata16:55 → 17:5611:150 min11:1448 min27 Aug
Singapore19:25 → 20:2612:430 min12:4348 min27 Aug
Sydney21:25 → 22:2611:340 min11:3348 min27 Aug
Suva23:25 → 00:2611:450 min11:4448 min27 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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