Ruling · Dāmodara Dvādaśī · 2010

Saturday 21 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 214 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 20 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 21 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 16:19 on Fri 20 Aug to 18:09 on Sat 21 Aug.

    2010-08-20T08:19:16Z → 2010-08-21T10:08:52Z

  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 0 of 48 minutes on the 20th and 48 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 12837 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 2010: Saturday 21 August.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 2010 falls on Saturday 21 August. Dvādaśī runs from 16:19 on Fri 20 Aug to 18:09 on Sat 21 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2010/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 21 Aug
Ahargaṇa, classicalDisc centre, no refractionSat 21 Aug
compat-drikpanchangComparison profileSat 21 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 Angeles01:19 → 03:0912:3248 min12:320 min20 Aug
Chicago03:19 → 05:0912:3048 min12:290 min20 Aug
Jersey City04:19 → 06:0912:3548 min12:350 min20 Aug
Port of Spain04:19 → 06:0911:4548 min11:450 min20 Aug
London09:19 → 11:0912:3948 min12:390 min20 Aug
Durban10:19 → 12:0911:3648 min11:3534 min20 Aug
Dubai12:19 → 14:0911:5827 min11:5848 min20 Aug
Delhi13:49 → 15:3912:000 min12:0048 min21 Aug
Kolkata13:49 → 15:3911:160 min11:1648 min21 Aug
Singapore16:19 → 18:0912:440 min12:4448 min21 Aug
Sydney18:19 → 20:0911:350 min11:3548 min21 Aug
Suva20:19 → 22:0911:460 min11:4648 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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