Ruling · Yama Dvitīyā (Bhai Dooj) · 1925

Monday 19 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 615 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 19 October

Taken. The only midday Dvitīyā reaches.

madhyāhna begins 11:39  12:27 madhyāhna ends
10:5111:1511:3912:0312:2712:5113:15

48 of 48 minutes covered

Midday of Tuesday 20 October

Dvitīyā is absent from madhyāhna. Not taken.

madhyāhna begins 11:39  12:27 madhyāhna ends
10:5111:1511:3912:0312:2712:5113:15

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 01:24 on Mon 19 Oct to 00:17 on Tue 20 Oct.

    1925-10-18T17:23:41Z → 1925-10-19T16:17:20Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 19th, 11:39–12:27 on the 20th.

    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 19th and 0 of 48 on the 20th.

    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 36919 s

  5. 05

    Ruling

    Yama Dvitīyā, Baoding, 1925: Monday 19 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dvitīyā (Bhai Dooj) 1925 falls on Monday 19 October. Dvitīyā runs from 01:24 on Mon 19 Oct to 00:17 on Tue 20 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1925/yama-dvitiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 19 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 19 Oct
compat-drikpanchangComparison profileMon 19 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 18thCoveredMadhyāhna 19thCoveredRuled
Los Angeles09:24 → 08:1711:1448 min11:140 min18 Oct
Chicago11:24 → 10:1711:1236 min11:110 min18 Oct
Jersey City12:24 → 11:1711:170 min11:170 min19 Oct
Port of Spain13:24 → 12:1711:270 min11:2748 min19 Oct
London17:24 → 16:1711:210 min11:2148 min19 Oct
Durban19:24 → 18:1711:170 min11:1748 min19 Oct
Dubai21:24 → 20:1711:400 min11:4048 min19 Oct
Delhi22:54 → 21:4711:420 min11:4248 min19 Oct
Kolkata22:54 → 21:4710:580 min10:5848 min19 Oct
Singapore00:24 → 23:1711:260 min11:2648 min19 Oct
Sydney03:24 → 02:1711:170 min11:1748 min19 Oct
Suva05:24 → 04:1711:280 min11:2848 min19 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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