Ruling · Yama Dvitīyā (Bhai Dooj) · 1951

Thursday 1 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 264 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 Wednesday 31 October

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 Thursday 1 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 19:31 on Wed 31 Oct to 16:50 on Thu 1 Nov.

    1951-10-31T11:30:53Z → 1951-11-01T08:49:41Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 31st, 11:38–12:26 on the 1st.

    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 31st and 48 of 48 on the 1st.

    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 15847 s

  5. 05

    Ruling

    Yama Dvitīyā, Baoding, 1951: Thursday 1 November.

    confidence: determinate

Say it like this

In Baoding, Yama Dvitīyā (Bhai Dooj) 1951 falls on Thursday 1 November. Dvitīyā runs from 19:31 on Wed 31 Oct to 16:50 on Thu 1 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1951/yama-dvitiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 1 Nov
Ahargaṇa, classicalDisc centre, no refractionThu 1 Nov
compat-drikpanchangComparison profileThu 1 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 31stCoveredMadhyāhna 1stCoveredRuled
Los Angeles03:31 → 00:5011:1248 min11:120 min31 Oct
Chicago05:31 → 02:5011:1048 min11:100 min31 Oct
Jersey City06:31 → 03:5011:1648 min11:160 min31 Oct
Port of Spain07:31 → 04:5011:2648 min11:260 min31 Oct
London11:31 → 08:5011:2037 min11:200 min31 Oct
Durban13:31 → 10:5011:160 min11:160 min1 Nov
Dubai15:31 → 12:5011:380 min11:3848 min1 Nov
Delhi17:01 → 14:2011:410 min11:4148 min1 Nov
Kolkata17:01 → 14:2010:560 min10:5648 min1 Nov
Singapore19:01 → 16:2011:540 min11:5448 min1 Nov
Sydney21:31 → 18:5011:150 min11:1548 min1 Nov
Suva23:31 → 20:5011:260 min11:2648 min1 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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