Ruling · Yama Dvitīyā (Bhai Dooj) · 1924

Wednesday 29 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 12 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 Wednesday 29 October

Taken. The only midday Dvitīyā reaches.

madhyāhna begins 11:38  12:26 madhyāhna ends
Dvitīyā begins 11:50:09
10:5011:1411:3812:0212:2612:5013:14

36 of 48 minutes covered, the last 36

Midday of Thursday 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 11:50 on Wed 29 Oct to 08:34 on Thu 30 Oct.

    1924-10-29T03:50:09Z → 1924-10-30T00:33:36Z

  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 36 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 747 s

  5. 05

    Ruling

    Yama Dvitīyā, Baoding, 1924: Wednesday 29 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dvitīyā (Bhai Dooj) 1924 falls on Wednesday 29 October. Dvitīyā runs from 11:50 on Wed 29 Oct to 08:34 on Thu 30 Oct and covers 36 of 48 minutes of madhyāhna that midday.

ahargana.org/baoding/festivals/1924/yama-dvitiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 29 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 29 Oct
compat-drikpanchangComparison profileWed 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 29thCoveredMadhyāhna 30thCoveredRuled
Los Angeles19:50 → 16:3411:1348 min11:120 min29 Oct
Chicago21:50 → 18:3411:1048 min11:100 min29 Oct
Jersey City22:50 → 19:3411:1648 min11:160 min29 Oct
Port of Spain23:50 → 20:3411:2648 min11:260 min29 Oct
London03:50 → 00:3411:2048 min11:200 min29 Oct
Durban05:50 → 02:3411:1648 min11:160 min29 Oct
Dubai07:50 → 04:3411:3848 min11:380 min29 Oct
Delhi09:20 → 06:0411:4148 min11:410 min29 Oct
Kolkata09:20 → 06:0410:5648 min10:560 min29 Oct
Singapore10:50 → 07:3411:2448 min11:240 min29 Oct
Sydney13:50 → 10:3411:150 min11:150 min30 Oct
Suva15:50 → 12:3411:260 min11:2648 min30 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

About Ahargaṇa