Ruling · Dāmodara Dvādaśī · 1951

Tuesday 14 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 464 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 Monday 13 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 Tuesday 14 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 23:41 on Mon 13 Aug to 20:30 on Tue 14 Aug.

    1951-08-13T15:41:30Z → 1951-08-14T12:30:25Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 13th, 11:59–12:47 on the 14th.

    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 13th and 48 of 48 on the 14th.

    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 27827 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 1951: Tuesday 14 August.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 1951 falls on Tuesday 14 August. Dvādaśī runs from 23:41 on Mon 13 Aug to 20:30 on Tue 14 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1951/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 14 Aug
Ahargaṇa, classicalDisc centre, no refractionTue 14 Aug
compat-drikpanchangComparison profileTue 14 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 13thCoveredMadhyāhna 14thCoveredRuled
Los Angeles08:41 → 05:3012:3448 min12:330 min13 Aug
Chicago10:41 → 07:3012:3148 min12:310 min13 Aug
Jersey City11:41 → 08:3012:3748 min12:370 min13 Aug
Port of Spain11:41 → 08:3011:4748 min11:470 min13 Aug
London16:41 → 13:3012:410 min12:4148 min14 Aug
Durban17:41 → 14:3011:370 min11:3748 min14 Aug
Dubai19:41 → 16:3012:000 min11:5948 min14 Aug
Delhi21:11 → 18:0012:020 min12:0248 min14 Aug
Kolkata21:11 → 18:0011:170 min11:1748 min14 Aug
Singapore23:11 → 20:0012:160 min12:1548 min14 Aug
Sydney01:41 → 22:3011:360 min11:3648 min14 Aug
Suva03:41 → 00:3011:470 min11:4748 min14 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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