Ruling · Yama Dvitīyā (Bhrātṛ Dvitīyā) · 1997

Sunday 2 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 416 minutes.

Decide it for

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 Saturday 1 November

Dvitīyā is absent from madhyāhna. Not taken.

madhyāhna begins 11:37  12:25 madhyāhna ends
10:4911:1311:3712:0112:2512:4913:13

0 of 48 minutes covered

Midday of Sunday 2 November

Taken. The only midday Dvitīyā reaches.

madhyāhna begins 11:37  12:25 madhyāhna ends
10:4911:1311:3712:0112:2512:4913:13

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 19:21 on Sat 1 Nov to 20:15 on Sun 2 Nov.

    1997-11-01T11:21:23Z → 1997-11-02T12:15:07Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:37–12:25 on the 1st, 11:37–12:25 on the 2nd.

    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 1st and 48 of 48 on the 2nd.

    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 24953 s

  5. 05

    Ruling

    Yama Dvitīyā, Baoding, 1997: Sunday 2 November.

    confidence: determinate

Say it like this

In Baoding, Yama Dvitīyā (Bhai Dooj) 1997 falls on Sunday 2 November. Dvitīyā runs from 19:21 on Sat 1 Nov to 20:15 on Sun 2 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1997/yama-dvitiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 2 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 2 Nov
compat-drikpanchangComparison profileSun 2 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 1stCoveredMadhyāhna 2ndCoveredRuled
Los Angeles03:21 → 04:1511:1248 min11:120 min1 Nov
Chicago05:21 → 06:1511:1048 min11:100 min1 Nov
Jersey City06:21 → 07:1511:1648 min11:160 min1 Nov
Port of Spain07:21 → 08:1511:2648 min11:260 min1 Nov
London11:21 → 12:1511:2046 min11:2048 min1 Nov
Durban13:21 → 14:1511:160 min11:1648 min2 Nov
Dubai15:21 → 16:1511:380 min11:3848 min2 Nov
Delhi16:51 → 17:4511:400 min11:4048 min2 Nov
Kolkata16:51 → 17:4510:560 min10:5648 min2 Nov
Singapore19:21 → 20:1512:240 min12:2448 min2 Nov
Sydney22:21 → 23:1512:150 min12:1548 min2 Nov
Suva23:21 → 00:1511:260 min11:2648 min2 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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