Ruling · Yama Dvitīyā (Bhai Dooj) · 2079

Thursday 26 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 389 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 Thursday 26 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 Friday 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

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

How it was decided

  1. 01

    Aṅga

    Dvitīyā runs from 03:31 on Thu 26 Oct to 05:09 on Fri 27 Oct.

    2079-10-25T19:31:10Z → 2079-10-26T21:08:32Z

  2. 02

    Kāla

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

    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 26th and 0 of 48 on the 27th.

    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 23365 s

  5. 05

    Ruling

    Yama Dvitīyā, Baoding, 2079: Thursday 26 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dvitīyā (Bhai Dooj) 2079 falls on Thursday 26 October. Dvitīyā runs from 03:31 on Thu 26 Oct to 05:09 on Fri 27 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2079/yama-dvitiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 26 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 26 Oct
compat-drikpanchangComparison profileThu 26 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 25thCoveredMadhyāhna 26thCoveredRuled
Los Angeles12:31 → 14:0912:1330 min12:1348 min25 Oct
Chicago14:31 → 16:0912:110 min12:1048 min26 Oct
Jersey City15:31 → 17:0912:160 min12:1648 min26 Oct
Port of Spain15:31 → 17:0911:260 min11:2648 min26 Oct
London20:31 → 22:0912:200 min12:2048 min26 Oct
Durban21:31 → 23:0911:160 min11:1648 min26 Oct
Dubai23:31 → 01:0911:390 min11:3948 min26 Oct
Delhi01:01 → 02:3911:410 min11:4148 min26 Oct
Kolkata01:01 → 02:3910:570 min10:5748 min26 Oct
Singapore03:31 → 05:0912:250 min12:2548 min26 Oct
Sydney06:31 → 08:0912:160 min12:1648 min26 Oct
Suva07:31 → 09:0911:270 min11:2748 min26 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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