Ruling · Yama Dvitīyā (Bhai Dooj) · 1963

Monday 18 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 301 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 Sunday 17 November

Dvitīyā is absent from madhyāhna. Not taken.

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

0 of 48 minutes covered

Midday of Monday 18 November

Taken. The only midday Dvitīyā reaches.

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

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 17:27 on Sun 17 Nov to 20:02 on Mon 18 Nov.

    1963-11-17T09:27:22Z → 1963-11-18T12:02:12Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 17th, 11:39–12:27 on the 18th.

    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 17th and 48 of 48 on the 18th.

    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 18035 s

  5. 05

    Ruling

    Yama Dvitīyā, Baoding, 1963: Monday 18 November.

    confidence: determinate

Say it like this

In Baoding, Yama Dvitīyā (Bhai Dooj) 1963 falls on Monday 18 November. Dvitīyā runs from 17:27 on Sun 17 Nov to 20:02 on Mon 18 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1963/yama-dvitiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 18 Nov
Ahargaṇa, classicalDisc centre, no refractionMon 18 Nov
compat-drikpanchangComparison profileMon 18 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 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles01:27 → 04:0211:1448 min11:140 min17 Nov
Chicago03:27 → 06:0211:1148 min11:120 min17 Nov
Jersey City04:27 → 07:0211:1748 min11:170 min17 Nov
Port of Spain05:27 → 08:0211:2748 min11:270 min17 Nov
London09:27 → 12:0211:2148 min11:2141 min17 Nov
Durban11:27 → 14:0211:1738 min11:1748 min17 Nov
Dubai13:27 → 16:0211:390 min11:4048 min18 Nov
Delhi14:57 → 17:3211:420 min11:4248 min18 Nov
Kolkata14:57 → 17:3210:570 min10:5748 min18 Nov
Singapore16:57 → 19:3211:550 min11:5648 min18 Nov
Sydney19:27 → 22:0211:160 min11:1648 min18 Nov
Suva21:27 → 00:0211:270 min11:2748 min18 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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