Ruling · Dāmodara Dvādaśī · 1918

Monday 19 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 Sunday 18 August

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:58  12:46 madhyāhna ends
11:1011:3411:5812:2212:4613:1013:34

0 of 48 minutes covered

Midday of Monday 19 August

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:58  12:46 madhyāhna ends
11:1011:3411:5812:2212:4613:1013:34

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 21:36 on Sun 18 Aug to 20:28 on Mon 19 Aug.

    1918-08-18T13:35:45Z → 1918-08-19T12:27:36Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 18th, 11:58–12:46 on the 19th.

    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 18th and 48 of 48 on the 19th.

    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 27721 s

  5. 05

    Ruling

    Dāmodara Dvādaśī, Baoding, 1918: Monday 19 August.

    confidence: determinate

Say it like this

In Baoding, Dāmodara Dvādaśī 1918 falls on Monday 19 August. Dvādaśī runs from 21:36 on Sun 18 Aug to 20:28 on Mon 19 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1918/damodara-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 19 Aug
Ahargaṇa, classicalDisc centre, no refractionMon 19 Aug
compat-drikpanchangComparison profileMon 19 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 18thCoveredMadhyāhna 19thCoveredRuled
Los Angeles06:36 → 05:2812:3348 min12:320 min18 Aug
Chicago08:36 → 07:2812:3048 min12:300 min18 Aug
Jersey City09:36 → 08:2812:3648 min12:360 min18 Aug
Port of Spain09:36 → 08:2811:4648 min11:460 min18 Aug
London14:36 → 13:2812:400 min12:4048 min19 Aug
Durban15:36 → 14:2811:360 min11:3648 min19 Aug
Dubai17:17 → 16:0911:400 min11:3948 min19 Aug
Delhi19:06 → 17:5812:010 min12:0148 min19 Aug
Kolkata19:06 → 17:5811:160 min11:1648 min19 Aug
Singapore20:36 → 19:2811:450 min11:4448 min19 Aug
Sydney23:36 → 22:2811:350 min11:3548 min19 Aug
Suva01:36 → 00:2811:460 min11:4648 min19 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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