Ruling · Yama Dvitīyā (Bhai Dooj) · 1923

Saturday 10 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 202 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 9 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 Saturday 10 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 19:32 on Fri 9 Nov to 15:48 on Sat 10 Nov.

    1923-11-09T11:32:24Z → 1923-11-10T07:48:18Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 9th, 11:38–12:26 on the 10th.

    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 9th and 48 of 48 on the 10th.

    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 12149 s

  5. 05

    Ruling

    Yama Dvitīyā, Baoding, 1923: Saturday 10 November.

    confidence: determinate

Say it like this

In Baoding, Yama Dvitīyā (Bhai Dooj) 1923 falls on Saturday 10 November. Dvitīyā runs from 19:32 on Fri 9 Nov to 15:48 on Sat 10 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1923/yama-dvitiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 10 Nov
Ahargaṇa, classicalDisc centre, no refractionSat 10 Nov
compat-drikpanchangComparison profileSat 10 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 9thCoveredMadhyāhna 10thCoveredRuled
Los Angeles03:32 → 23:4811:1348 min11:130 min9 Nov
Chicago05:32 → 01:4811:1048 min11:100 min9 Nov
Jersey City06:32 → 02:4811:1648 min11:160 min9 Nov
Port of Spain07:32 → 03:4811:2648 min11:260 min9 Nov
London11:32 → 07:4811:2036 min11:200 min9 Nov
Durban13:32 → 09:4811:160 min11:160 min10 Nov
Dubai15:32 → 11:4811:380 min11:3910 min10 Nov
Delhi17:02 → 13:1811:410 min11:4148 min10 Nov
Kolkata17:02 → 13:1810:560 min10:5648 min10 Nov
Singapore18:32 → 14:4811:240 min11:2448 min10 Nov
Sydney21:32 → 17:4811:150 min11:1548 min10 Nov
Suva23:32 → 19:4811:260 min11:2648 min10 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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