Ruling · Yama Dvitīyā (Bhai Dooj) · 1901

Wednesday 13 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 351 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 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

Midday of Wednesday 13 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

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

How it was decided

  1. 01

    Aṅga

    Dvitīyā runs from 18:17 on Tue 12 Nov to 20:54 on Wed 13 Nov.

    1901-11-12T10:16:49Z → 1901-11-13T12:53:35Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 12th, 11:38–12:26 on the 13th.

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

  3. 03

    Rule

    Dvitīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 12th and 48 of 48 on the 13th.

    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 21044 s

  5. 05

    Ruling

    Yama Dvitīyā, Baoding, 1901: Wednesday 13 November.

    confidence: determinate

Say it like this

In Baoding, Yama Dvitīyā (Bhai Dooj) 1901 falls on Wednesday 13 November. Dvitīyā runs from 18:17 on Tue 12 Nov to 20:54 on Wed 13 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1901/yama-dvitiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 13 Nov
Ahargaṇa, classicalDisc centre, no refractionWed 13 Nov
compat-drikpanchangComparison profileWed 13 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles02:17 → 04:5411:1348 min11:130 min12 Nov
Chicago04:17 → 06:5411:1148 min11:110 min12 Nov
Jersey City05:17 → 07:5411:1648 min11:160 min12 Nov
Port of Spain06:17 → 08:5411:2648 min11:260 min12 Nov
London10:17 → 12:5411:2048 min11:2148 min12 Nov
Durban11:47 → 14:2410:460 min10:4648 min13 Nov
Dubai13:58 → 16:3511:200 min11:2048 min13 Nov
Delhi15:38 → 18:1511:320 min11:3248 min13 Nov
Kolkata15:38 → 18:1510:480 min10:4848 min13 Nov
Singapore17:12 → 19:4911:200 min11:2048 min13 Nov
Sydney20:17 → 22:5411:160 min11:1648 min13 Nov
Suva22:12 → 00:4911:220 min11:2248 min13 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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