Ruling · Yama Dvitīyā (Bhai Dooj) · 2069

Friday 15 November

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 2 min 29 s away. Say “contested”.

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 Friday 15 November

Taken. Both middays qualify; the rule takes the first.

madhyāhna begins 11:39  12:27 madhyāhna ends
10:5111:1511:3912:0312:2712:5113:15

48 of 48 minutes covered

Midday of Saturday 16 November

Qualifies with 2 of 48 minutes. Not taken.

madhyāhna begins 11:39  12:27 madhyāhna ends
Dvitīyā ends 11:41:21
10:5111:1511:3912:0312:2712:5113:15

2 of 48 minutes covered, the first 2

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

How it was decided

  1. 01

    Aṅga

    Dvitīyā runs from 09:16 on Fri 15 Nov to 11:41 on Sat 16 Nov.

    2069-11-15T01:15:45Z → 2069-11-16T03:41:22Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 15th, 11:39–12:27 on the 16th.

    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 15th and 2 of 48 on the 16th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 149 s < 300 s

  5. 05

    Ruling

    Yama Dvitīyā, Baoding, 2069: Friday 15 November.

    confidence: boundary (margin)

Say it like this

In Baoding, Yama Dvitīyā (Bhai Dooj) 2069 falls on Friday 15 November. Dvitīyā runs from 09:16 on Fri 15 Nov to 11:41 on Sat 16 Nov and covers all of madhyāhna that midday. It also reaches the next midday for 2 minutes; by the rule the first midday is taken. It is 2 min 29 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/2069/yama-dvitiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 15 Nov
Ahargaṇa, classicalDisc centre, no refractionFri 15 Nov
compat-drikpanchangComparison profileFri 15 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 15thCoveredMadhyāhna 16thCoveredRuled
Los Angeles17:16 → 19:4111:1448 min11:140 min15 Nov
Chicago19:16 → 21:4111:1148 min11:110 min15 Nov
Jersey City20:16 → 22:4111:1748 min11:170 min15 Nov
Port of Spain21:16 → 23:4111:2748 min11:270 min15 Nov
London01:16 → 03:4111:2148 min11:210 min15 Nov
Durban03:16 → 05:4111:1748 min11:170 min15 Nov
Dubai05:16 → 07:4111:3948 min11:400 min15 Nov
Delhi06:46 → 09:1111:4248 min11:420 min15 Nov
Kolkata06:46 → 09:1110:5748 min10:570 min15 Nov
Singapore09:16 → 11:4112:2548 min12:260 min15 Nov
Sydney12:16 → 14:4112:1648 min12:1648 min15 Nov
Suva13:16 → 15:4111:270 min11:2748 min16 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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