Ruling · Dāmodara Dvādaśī · 2081

Friday 15 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 21 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 Friday 15 August

Taken. Both middays qualify; the rule takes the first.

madhyāhna begins 11:59  12:47 madhyāhna ends
Dvādaśī begins 12:19:10
11:1111:3511:5912:2312:4713:1113:35

27 of 48 minutes covered, the last 27

Midday of Saturday 16 August

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:58  12:46 madhyāhna ends
Dvādaśī ends 13:27:34
11:1011:3411:5812:2212:4613:1013:34

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 12:19 on Fri 15 Aug to 13:28 on Sat 16 Aug.

    2081-08-15T04:19:10Z → 2081-08-16T05:27:35Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 15th, 11:58–12:46 on the 16th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Dvādaśī must be present during madhyāhna. It covers 27 of 48 minutes on the 15th and 48 of 48 on the 16th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 1234 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 2081: Friday 15 August.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 2081 falls on Friday 15 August. Dvādaśī runs from 12:19 on Fri 15 Aug to 13:28 on Sat 16 Aug and covers 27 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.

ahargana.org/baoding/festivals/2081/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 15 Aug
Ahargaṇa, classicalDisc centre, no refractionFri 15 Aug
compat-drikpanchangComparison profileFri 15 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 15thCoveredMadhyāhna 16thCoveredRuled
Los Angeles21:19 → 22:2812:3348 min12:330 min15 Aug
Chicago23:19 → 00:2812:3148 min12:310 min15 Aug
Jersey City00:19 → 01:2812:3748 min12:360 min15 Aug
Port of Spain00:19 → 01:2811:4748 min11:460 min15 Aug
London05:19 → 06:2812:4148 min12:400 min15 Aug
Durban06:19 → 07:2811:3748 min11:370 min15 Aug
Dubai08:19 → 09:2811:5948 min11:590 min15 Aug
Delhi09:49 → 10:5812:0248 min12:010 min15 Aug
Kolkata09:49 → 10:5811:1748 min11:170 min15 Aug
Singapore12:19 → 13:2812:4548 min12:4542 min15 Aug
Sydney14:19 → 15:2811:360 min11:3648 min16 Aug
Suva16:19 → 17:2811:470 min11:4748 min16 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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