Ruling · Yama Dvitīyā (Bhai Dooj) · 1916

Saturday 28 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 509 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 Saturday 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

Midday of Sunday 29 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 03:09 on Sat 28 Oct to 01:21 on Sun 29 Oct.

    1916-10-27T19:08:55Z → 1916-10-28T17:20:54Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:38–12:26 on the 28th, 11:38–12:26 on the 29th.

    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 28th and 0 of 48 on the 29th.

    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 30533 s

  5. 05

    Ruling

    Yama Dvitīyā, Baoding, 1916: Saturday 28 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dvitīyā (Bhai Dooj) 1916 falls on Saturday 28 October. Dvitīyā runs from 03:09 on Sat 28 Oct to 01:21 on Sun 29 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1916/yama-dvitiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 28 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 28 Oct
compat-drikpanchangComparison profileSat 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 Angeles11:09 → 09:2111:1348 min11:130 min27 Oct
Chicago13:09 → 11:2111:100 min11:1011 min28 Oct
Jersey City14:09 → 12:2111:160 min11:1648 min28 Oct
Port of Spain15:09 → 13:2111:260 min11:2648 min28 Oct
London19:09 → 17:2111:200 min11:2048 min28 Oct
Durban21:09 → 19:2111:160 min11:1648 min28 Oct
Dubai22:50 → 21:0211:200 min11:1948 min28 Oct
Delhi00:39 → 22:5111:410 min11:4148 min28 Oct
Kolkata00:39 → 22:5110:560 min10:5648 min28 Oct
Singapore02:09 → 00:2111:250 min11:2448 min28 Oct
Sydney05:09 → 03:2111:150 min11:1548 min28 Oct
Suva07:09 → 05:2111:260 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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