Ruling · Yama Dvitīyā (Bhai Dooj) · 1988

Friday 11 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 629 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 10 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 11 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 22:55 on Thu 10 Nov to 23:02 on Fri 11 Nov.

    1988-11-10T14:54:42Z → 1988-11-11T15:02:28Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 10th, 11:38–12:26 on the 11th.

    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 10th and 48 of 48 on the 11th.

    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 37730 s

  5. 05

    Ruling

    Yama Dvitīyā, Baoding, 1988: Friday 11 November.

    confidence: determinate

Say it like this

In Baoding, Yama Dvitīyā (Bhai Dooj) 1988 falls on Friday 11 November. Dvitīyā runs from 22:55 on Thu 10 Nov to 23:02 on Fri 11 Nov and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1988/yama-dvitiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 11 Nov
Ahargaṇa, classicalDisc centre, no refractionFri 11 Nov
compat-drikpanchangComparison profileFri 11 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 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles06:55 → 07:0211:1348 min11:130 min10 Nov
Chicago08:55 → 09:0211:1048 min11:100 min10 Nov
Jersey City09:55 → 10:0211:1648 min11:160 min10 Nov
Port of Spain10:55 → 11:0211:2648 min11:260 min10 Nov
London14:55 → 15:0211:200 min11:2048 min11 Nov
Durban16:55 → 17:0211:160 min11:1648 min11 Nov
Dubai18:55 → 19:0211:390 min11:3948 min11 Nov
Delhi20:25 → 20:3211:410 min11:4148 min11 Nov
Kolkata20:25 → 20:3210:560 min10:5648 min11 Nov
Singapore22:55 → 23:0212:250 min12:2548 min11 Nov
Sydney01:55 → 02:0212:150 min12:1548 min11 Nov
Suva02:55 → 03:0211:260 min11:2648 min11 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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