Ruling · Yama Dvitīyā (Bhai Dooj) · 1973

Saturday 27 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 23 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 Saturday 27 October

Taken. Both middays qualify; the rule takes the first.

madhyāhna begins 11:38  12:26 madhyāhna ends
Dvitīyā begins 12:00:38
10:5011:1411:3812:0212:2612:5013:14

25 of 48 minutes covered, the last 25

Midday of Sunday 28 October

Qualifies with 48 of 48 minutes. Not taken.

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 12:01 on Sat 27 Oct to 13:18 on Sun 28 Oct.

    1973-10-27T04:00:39Z → 1973-10-28T05:18:25Z

  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 25 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

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 1369 s

  5. 05

    Ruling

    Yama Dvitīyā, Baoding, 1973: Saturday 27 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dvitīyā (Bhai Dooj) 1973 falls on Saturday 27 October. Dvitīyā runs from 12:01 on Sat 27 Oct to 13:18 on Sun 28 Oct and covers 25 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.

ahargana.org/baoding/festivals/1973/yama-dvitiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 27 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 27 Oct
compat-drikpanchangComparison profileSat 27 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 Angeles21:01 → 22:1812:1348 min11:130 min27 Oct
Chicago23:01 → 00:1812:1048 min11:100 min27 Oct
Jersey City00:01 → 01:1812:1648 min11:160 min27 Oct
Port of Spain00:01 → 01:1811:2648 min11:260 min27 Oct
London05:01 → 05:1812:2048 min11:200 min27 Oct
Durban06:01 → 07:1811:1648 min11:160 min27 Oct
Dubai08:01 → 09:1811:3948 min11:380 min27 Oct
Delhi09:31 → 10:4811:4148 min11:410 min27 Oct
Kolkata09:31 → 10:4810:5648 min10:560 min27 Oct
Singapore11:31 → 12:4811:5548 min11:5448 min27 Oct
Sydney14:01 → 16:1811:150 min12:1548 min28 Oct
Suva16:01 → 17:1811:260 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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