Ruling · Yama Dvitīyā (Bhai Dooj) · 1980

Sunday 9 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 176 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 9 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 Monday 10 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 06:50 on Sun 9 Nov to 08:42 on Mon 10 Nov.

    1980-11-08T22:50:11Z → 1980-11-10T00:42:15Z

  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 48 of 48 minutes on the 9th and 0 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 10538 s

  5. 05

    Ruling

    Yama Dvitīyā, Baoding, 1980: Sunday 9 November.

    confidence: determinate

Say it like this

In Baoding, Yama Dvitīyā (Bhai Dooj) 1980 falls on Sunday 9 November. Dvitīyā runs from 06:50 on Sun 9 Nov to 08:42 on Mon 10 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1980/yama-dvitiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 9 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 9 Nov
compat-drikpanchangComparison profileSun 9 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 8thCoveredMadhyāhna 10thCoveredRuled
Los Angeles14:50 → 16:4211:130 min11:130 min9 Nov
Chicago16:50 → 18:4211:100 min11:100 min9 Nov
Jersey City17:50 → 19:4211:160 min11:160 min9 Nov
Port of Spain18:50 → 20:4211:260 min11:260 min9 Nov
London22:50 → 00:4211:200 min11:200 min9 Nov
Durban00:50 → 02:4211:160 min11:160 min9 Nov
Dubai02:50 → 04:4211:380 min11:390 min9 Nov
Delhi04:20 → 06:1211:410 min11:410 min9 Nov
Kolkata04:20 → 06:1210:560 min10:560 min9 Nov
Singapore06:20 → 08:1211:540 min11:550 min9 Nov
Sydney09:50 → 11:4212:150 min12:150 min9 Nov
Suva10:50 → 12:4211:260 min11:2648 min9 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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