Ruling · Yama Dvitīyā (Bhrātṛ Dvitīyā) · 2018

Friday 9 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 672 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 Thursday 8 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 Friday 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

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

How it was decided

  1. 01

    Aṅga

    Dvitīyā runs from 23:38 on Thu 8 Nov to 23:50 on Fri 9 Nov.

    2018-11-08T15:37:53Z → 2018-11-09T15:50:21Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 8th, 11:38–12:26 on the 9th.

    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 8th and 48 of 48 on the 9th.

    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 40335 s

  5. 05

    Ruling

    Yama Dvitīyā, Baoding, 2018: Friday 9 November.

    confidence: determinate

Say it like this

In Baoding, Yama Dvitīyā (Bhai Dooj) 2018 falls on Friday 9 November. Dvitīyā runs from 23:38 on Thu 8 Nov to 23:50 on Fri 9 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2018/yama-dvitiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 9 Nov
Ahargaṇa, classicalDisc centre, no refractionFri 9 Nov
compat-drikpanchangComparison profileFri 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 9thCoveredRuled
Los Angeles07:38 → 07:5011:1348 min11:130 min8 Nov
Chicago09:38 → 09:5011:1048 min11:100 min8 Nov
Jersey City10:38 → 10:5011:1648 min11:160 min8 Nov
Port of Spain11:38 → 11:5011:2636 min11:2624 min8 Nov
London15:38 → 15:5011:200 min11:2048 min9 Nov
Durban17:38 → 17:5011:160 min11:1648 min9 Nov
Dubai19:38 → 19:5011:380 min11:3848 min9 Nov
Delhi21:08 → 21:2011:410 min11:4148 min9 Nov
Kolkata21:08 → 21:2010:560 min10:5648 min9 Nov
Singapore23:38 → 23:5012:240 min12:2448 min9 Nov
Sydney02:38 → 02:5012:150 min12:1548 min9 Nov
Suva04:38 → 04:5012:260 min12:2648 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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