Ruling · Dāmodara Dvādaśī · 1907

Tuesday 20 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 176 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 Tuesday 20 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

Midday of Wednesday 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

Dvādaśī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 09:02 on Tue 20 Aug to 05:57 on Wed 21 Aug.

    1907-08-20T01:01:43Z → 1907-08-20T21:57:01Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 20th, 11:57–12:45 on the 21st.

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

  3. 03

    Rule

    Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.

    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 10541 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 1907: Tuesday 20 August.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 1907 falls on Tuesday 20 August. Dvādaśī runs from 09:02 on Tue 20 Aug to 05:57 on Wed 21 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1907/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 20 Aug
Ahargaṇa, classicalDisc centre, no refractionTue 20 Aug
compat-drikpanchangComparison profileTue 20 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 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles17:02 → 13:5711:3248 min11:320 min20 Aug
Chicago19:02 → 15:5711:3048 min11:290 min20 Aug
Jersey City20:02 → 16:5711:3548 min11:350 min20 Aug
Port of Spain21:02 → 17:5711:4548 min11:450 min20 Aug
London01:02 → 21:5711:3948 min11:390 min20 Aug
Durban03:02 → 23:5711:3648 min11:350 min20 Aug
Dubai04:43 → 01:3811:3948 min11:390 min20 Aug
Delhi06:32 → 03:2712:0048 min12:000 min20 Aug
Kolkata06:32 → 03:2711:1648 min11:160 min20 Aug
Singapore08:02 → 04:5711:4448 min11:440 min20 Aug
Sydney11:02 → 07:5711:3548 min11:350 min20 Aug
Suva12:57 → 09:5211:410 min11:410 min21 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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