Ruling · Dāmodara Dvādaśī · 2051

Saturday 19 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 174 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 18 August

Dvādaśī is absent from madhyāhna. Not taken.

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

0 of 48 minutes covered

Midday of Saturday 19 August

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:58  12:46 madhyāhna ends
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 16:23 on Fri 18 Aug to 15:40 on Sat 19 Aug.

    2051-08-18T08:23:18Z → 2051-08-19T07:39:36Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 18th, 11:58–12:46 on the 19th.

    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 18th and 48 of 48 on the 19th.

    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 10437 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 2051: Saturday 19 August.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 2051 falls on Saturday 19 August. Dvādaśī runs from 16:23 on Fri 18 Aug to 15:40 on Sat 19 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2051/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 19 Aug
Ahargaṇa, classicalDisc centre, no refractionSat 19 Aug
compat-drikpanchangComparison profileSat 19 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 18thCoveredMadhyāhna 19thCoveredRuled
Los Angeles01:23 → 00:4012:3348 min12:320 min18 Aug
Chicago03:23 → 02:4012:3048 min12:300 min18 Aug
Jersey City04:23 → 03:4012:3648 min12:360 min18 Aug
Port of Spain04:23 → 03:4011:4648 min11:460 min18 Aug
London09:23 → 08:4012:4048 min12:400 min18 Aug
Durban10:23 → 09:4011:3648 min11:360 min18 Aug
Dubai12:23 → 11:4011:5923 min11:580 min18 Aug
Delhi13:53 → 13:1012:010 min12:0148 min19 Aug
Kolkata13:53 → 13:1011:160 min11:1648 min19 Aug
Singapore16:23 → 15:4012:450 min12:4448 min19 Aug
Sydney18:23 → 17:4011:350 min11:3548 min19 Aug
Suva20:23 → 19:4011:460 min11:4648 min19 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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