Ruling · Dāmodara Dvādaśī · 2037

Saturday 22 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 462 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 21 August

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

0 of 48 minutes covered

Midday of Saturday 22 August

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

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 20:27 on Fri 21 Aug to 21:34 on Sat 22 Aug.

    2037-08-21T12:26:51Z → 2037-08-22T13:33:46Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 21st, 11:57–12:45 on the 22nd.

    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 21st and 48 of 48 on the 22nd.

    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 27710 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 2037: Saturday 22 August.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 2037 falls on Saturday 22 August. Dvādaśī runs from 20:27 on Fri 21 Aug to 21:34 on Sat 22 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2037/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 22 Aug
Ahargaṇa, classicalDisc centre, no refractionSat 22 Aug
compat-drikpanchangComparison profileSat 22 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 21stCoveredMadhyāhna 22ndCoveredRuled
Los Angeles05:27 → 06:3412:3248 min12:310 min21 Aug
Chicago07:27 → 08:3412:2948 min12:290 min21 Aug
Jersey City08:27 → 09:3412:3548 min12:350 min21 Aug
Port of Spain08:27 → 09:3411:4548 min11:450 min21 Aug
London13:27 → 14:3412:390 min12:3948 min21 Aug
Durban14:27 → 15:3411:350 min11:3548 min22 Aug
Dubai16:27 → 17:3411:580 min11:5748 min22 Aug
Delhi17:57 → 19:0412:000 min12:0048 min22 Aug
Kolkata17:57 → 19:0411:160 min11:1548 min22 Aug
Singapore20:27 → 21:3412:440 min12:4448 min22 Aug
Sydney22:27 → 23:3411:350 min11:3448 min22 Aug
Suva00:27 → 01:3411:460 min11:4548 min22 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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