Ruling · Yama Dvitīyā (Bhrātṛ Dvitīyā) · 1981

Thursday 29 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 167 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 29 October

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 Friday 30 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

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

How it was decided

  1. 01

    Aṅga

    Dvitīyā runs from 06:24 on Thu 29 Oct to 08:51 on Fri 30 Oct.

    1981-10-28T22:24:20Z → 1981-10-30T00:50:50Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 29th, 11:38–12:26 on the 30th.

    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 29th and 0 of 48 on the 30th.

    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 10006 s

  5. 05

    Ruling

    Yama Dvitīyā, Baoding, 1981: Thursday 29 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dvitīyā (Bhai Dooj) 1981 falls on Thursday 29 October. Dvitīyā runs from 06:24 on Thu 29 Oct to 08:51 on Fri 30 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1981/yama-dvitiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 29 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 29 Oct
compat-drikpanchangComparison profileThu 29 Oct
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 28thCoveredMadhyāhna 30thCoveredRuled
Los Angeles14:24 → 16:5111:130 min11:120 min29 Oct
Chicago16:24 → 18:5111:100 min11:100 min29 Oct
Jersey City17:24 → 19:5111:160 min11:160 min29 Oct
Port of Spain18:24 → 20:5111:260 min11:260 min29 Oct
London22:24 → 00:5111:200 min11:200 min29 Oct
Durban00:24 → 02:5111:160 min11:160 min29 Oct
Dubai02:24 → 04:5111:380 min11:380 min29 Oct
Delhi03:54 → 06:2111:410 min11:410 min29 Oct
Kolkata03:54 → 06:2110:560 min10:560 min29 Oct
Singapore05:54 → 08:2111:540 min11:540 min29 Oct
Sydney09:24 → 11:5112:150 min12:150 min29 Oct
Suva10:24 → 12:5111:260 min11:2648 min29 Oct
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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