Ruling · Dāmodara Dvādaśī · 1962

Monday 13 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 13 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 12 August

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:59  12:47 madhyāhna ends
Dvādaśī begins 13:06:33
11:1111:3511:5912:2312:4713:1113:35

0 of 48 minutes covered

Midday of Monday 13 August

Taken. Dvādaśī reaches neither midday; the rule takes the second day.

madhyāhna begins 11:59  12:47 madhyāhna ends
Dvādaśī ends 11:46:03
11:1111:3511:5912:2312:4713:1113:35

0 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 13:07 on Sun 12 Aug to 11:46 on Mon 13 Aug.

    1962-08-12T05:06:33Z → 1962-08-13T03:46:03Z

  2. 02

    Kāla

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

    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 12th and 0 of 48 on the 13th.

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

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: purvaviddha → second-day · margin 762 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 1962: Monday 13 August.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 1962 falls on Monday 13 August. Dvādaśī runs from 13:07 on Sun 12 Aug to 11:46 on Mon 13 Aug, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/1962/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 13 Aug
Ahargaṇa, classicalDisc centre, no refractionMon 13 Aug
compat-drikpanchangComparison profileSun 12 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles22:07 → 20:4612:3448 min12:340 min12 Aug
Chicago00:07 → 22:4612:3148 min12:310 min12 Aug
Jersey City01:07 → 23:4612:3748 min12:370 min12 Aug
Port of Spain01:07 → 23:4611:4748 min11:470 min12 Aug
London06:07 → 04:4612:4148 min12:410 min12 Aug
Durban07:07 → 05:4611:3748 min11:370 min12 Aug
Dubai09:07 → 07:4612:0048 min11:590 min12 Aug
Delhi10:37 → 09:1612:0248 min12:020 min12 Aug
Kolkata10:37 → 09:1611:1748 min11:170 min12 Aug
Singapore12:37 → 11:1612:1627 min12:160 min12 Aug
Sydney15:07 → 13:4611:360 min11:3648 min13 Aug
Suva17:07 → 15:4611:480 min11:4748 min13 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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