Ruling · Yama Dvitīyā (Bhai Dooj) · 2087

Tuesday 28 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 576 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 Monday 27 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 Tuesday 28 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

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

How it was decided

  1. 01

    Aṅga

    Dvitīyā runs from 22:02 on Mon 27 Oct to 00:42 on Wed 29 Oct.

    2087-10-27T14:01:42Z → 2087-10-28T16:42:27Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 27th, 11:38–12:26 on the 28th.

    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 27th and 48 of 48 on the 28th.

    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 34540 s

  5. 05

    Ruling

    Yama Dvitīyā, Baoding, 2087: Tuesday 28 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dvitīyā (Bhai Dooj) 2087 falls on Tuesday 28 October. Dvitīyā runs from 22:02 on Mon 27 Oct to 00:42 on Wed 29 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2087/yama-dvitiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 28 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 28 Oct
compat-drikpanchangComparison profileTue 28 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 27thCoveredMadhyāhna 28thCoveredRuled
Los Angeles07:02 → 09:4212:1348 min12:130 min27 Oct
Chicago09:02 → 11:4212:1048 min12:100 min27 Oct
Jersey City10:02 → 12:4212:1648 min12:1626 min27 Oct
Port of Spain10:02 → 12:4211:2648 min11:2648 min27 Oct
London14:02 → 16:4211:200 min11:2048 min28 Oct
Durban16:02 → 18:4211:160 min11:1648 min28 Oct
Dubai18:02 → 20:4211:390 min11:3948 min28 Oct
Delhi19:32 → 22:1211:410 min11:4148 min28 Oct
Kolkata19:32 → 22:1210:570 min10:5648 min28 Oct
Singapore22:02 → 00:4212:250 min12:2548 min28 Oct
Sydney01:02 → 03:4212:160 min12:1548 min28 Oct
Suva02:02 → 04:4211:270 min11:2648 min28 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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