Ruling · Yama Dvitīyā (Bhai Dooj) · 1931

Wednesday 11 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 473 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 Wednesday 11 November

Taken. The only midday Dvitīyā reaches.

madhyāhna begins 11:38  12:26 madhyāhna ends
10:5011:1411:3812:0212:2612:5013:14

48 of 48 minutes covered

Midday of Thursday 12 November

Dvitīyā is absent from madhyāhna. Not taken.

madhyāhna begins 11:38  12:26 madhyāhna ends
10:5011:1411:3812:0212:2612:5013:14

0 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Dvitīyā runs from 03:45 on Wed 11 Nov to 00:58 on Thu 12 Nov.

    1931-11-10T19:45:15Z → 1931-11-11T16:57:53Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 11th, 11:38–12:26 on the 12th.

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

  3. 03

    Rule

    Dvitīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 11th and 0 of 48 on the 12th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 28360 s

  5. 05

    Ruling

    Yama Dvitīyā, Baoding, 1931: Wednesday 11 November.

    confidence: determinate

Say it like this

In Baoding, Yama Dvitīyā (Bhai Dooj) 1931 falls on Wednesday 11 November. Dvitīyā runs from 03:45 on Wed 11 Nov to 00:58 on Thu 12 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1931/yama-dvitiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 11 Nov
Ahargaṇa, classicalDisc centre, no refractionWed 11 Nov
compat-drikpanchangComparison profileWed 11 Nov
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/yama-dvitiya · ruleset 2026.3-draft

Month
Kārtika, amānta
Pakṣa · aṅga
Śukla · Dvitīyā
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 104

“S 2 Bhratrdvitiya, Yamadvitiya (madhyahna, purvaviddha), Masyadhara (Dwat) puja (Bihar).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceDvitīyāMadhyāhna 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles11:45 → 08:5811:1315 min11:130 min10 Nov
Chicago13:45 → 10:5811:100 min11:100 min11 Nov
Jersey City14:45 → 11:5811:160 min11:1642 min11 Nov
Port of Spain15:45 → 12:5811:260 min11:2648 min11 Nov
London19:45 → 16:5811:200 min11:2048 min11 Nov
Durban21:45 → 18:5811:160 min11:1648 min11 Nov
Dubai23:45 → 20:5811:390 min11:3948 min11 Nov
Delhi01:15 → 22:2811:410 min11:4148 min11 Nov
Kolkata01:15 → 22:2810:560 min10:5648 min11 Nov
Singapore02:45 → 23:5811:240 min11:2548 min11 Nov
Sydney05:45 → 02:5811:150 min11:1548 min11 Nov
Suva07:45 → 04:5811:260 min11:2648 min11 Nov
Profile · tradition
pac-rp@2026.1 · smarta
Rule
yama-dvitiya@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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