Ruling · Gaurī Tṛtīyā (Gangaur) · 1906

Tuesday 27 March

Boundaryin Baoding, under the Rashtriya Panchang method. Both middays qualify and the rule does not say which to take. Say “contested”.

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 Tuesday 27 March

Taken. Both middays qualify; the rule is silent, and this one is covered longer.

madhyāhna begins 12:00  12:48 madhyāhna ends
Tṛtīyā begins 11:34:53
11:1211:3612:0012:2412:4813:1213:36

48 of 48 minutes covered

Midday of Wednesday 28 March

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 12:00  12:48 madhyāhna ends
11:1211:3612:0012:2412:4813:1213:36

48 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Tṛtīyā runs from 11:35 on Tue 27 Mar to 13:52 on Wed 28 Mar.

    1906-03-27T03:34:53Z → 1906-03-28T05:52:08Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 27th, 12:00–12:48 on the 28th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Tṛtīyā must be present during madhyāhna. It covers 48 of 48 minutes on the 27th and 48 of 48 on the 28th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

    priority: unstated → greater-coverage · margin 1522 s

  5. 05

    Ruling

    Gaurī Tṛtīyā, Baoding, 1906: Tuesday 27 March.

    confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Gaurī Tṛtīyā (Gangaur) 1906 falls on Tuesday 27 March. Tṛtīyā runs from 11:35 on Tue 27 Mar to 13:52 on Wed 28 Mar and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.

ahargana.org/baoding/festivals/1906/gauri-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 27 Mar
Ahargaṇa, classicalDisc centre, no refractionTue 27 Mar
compat-drikpanchangComparison profileWed 28 Mar
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/gauri-tritiya · ruleset 2026.3-draft

Month
Caitra, amānta
Pakṣa · aṅga
Śukla · Tṛtīyā
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 102

“S 3 Dolotsava, Gauri trtiya, Andolana trtiya, Saubhagya sayana vrata (paraviddha), Sarhul (Bihar).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceTṛtīyāMadhyāhna 27thCoveredMadhyāhna 28thCoveredRuled
Los Angeles19:35 → 21:5211:3548 min11:350 min27 Mar
Chicago21:35 → 23:5211:3348 min11:320 min27 Mar
Jersey City22:35 → 00:5211:3848 min11:380 min27 Mar
Port of Spain23:35 → 01:5211:4848 min11:470 min27 Mar
London03:35 → 05:5211:4348 min11:420 min27 Mar
Durban05:35 → 07:5211:3748 min11:370 min27 Mar
Dubai07:16 → 09:3311:4248 min11:410 min27 Mar
Delhi09:05 → 11:2212:0348 min12:030 min27 Mar
Kolkata09:05 → 11:2211:1848 min11:184 min27 Mar
Singapore10:35 → 12:5211:4648 min11:4648 min27 Mar
Sydney13:35 → 15:5211:370 min11:3648 min28 Mar
Suva15:30 → 17:4711:430 min11:4348 min28 Mar
Profile · tradition
pac-rp@2026.1 · smarta
Rule
gauri-tritiya@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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