Ruling · Gaurī Tṛtīyā (Gangaur) · 1954

Monday 5 April

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 4 min 23 s away. 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 Monday 5 April

Taken. The only midday Tṛtīyā reaches.

madhyāhna begins 11:57  12:45 madhyāhna ends
Tṛtīyā begins 12:41:01
11:0911:3311:5712:2112:4513:0913:33

4 of 48 minutes covered, the last 4

Midday of Tuesday 6 April

Tṛtīyā is absent from madhyāhna. Not taken.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

0 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 12:41 on Mon 5 Apr to 09:11 on Tue 6 Apr.

    1954-04-05T04:41:01Z → 1954-04-06T01:11:20Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 5th, 11:57–12:45 on the 6th.

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

  3. 03

    Rule

    Tṛtīyā must be present during madhyāhna. It covers 4 of 48 minutes on the 5th and 0 of 48 on the 6th.

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

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 263 s < 300 s

  5. 05

    Ruling

    Gaurī Tṛtīyā, Baoding, 1954: Monday 5 April.

    confidence: boundary (margin)

Say it like this

In Baoding, Gaurī Tṛtīyā (Gangaur) 1954 falls on Monday 5 April. Tṛtīyā runs from 12:41 on Mon 5 Apr to 09:11 on Tue 6 Apr and covers 4 of 48 minutes of madhyāhna that midday. It is 4 min 23 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/1954/gauri-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 5 Apr
Ahargaṇa, classicalDisc centre, no refractionMon 5 Apr
compat-drikpanchangComparison profileMon 5 Apr
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 5thCoveredMadhyāhna 6thCoveredRuled
Los Angeles20:41 → 17:1111:3248 min11:320 min5 Apr
Chicago22:41 → 19:1111:3048 min11:290 min5 Apr
Jersey City23:41 → 20:1111:3548 min11:350 min5 Apr
Port of Spain00:41 → 21:1111:4548 min11:450 min5 Apr
London04:41 → 01:1111:4048 min11:400 min5 Apr
Durban06:41 → 03:1111:3548 min11:340 min5 Apr
Dubai08:41 → 05:1111:5848 min11:580 min5 Apr
Delhi10:11 → 06:4112:0048 min12:000 min5 Apr
Kolkata10:11 → 06:4111:1648 min11:150 min5 Apr
Singapore12:11 → 08:4112:1448 min12:130 min5 Apr
Sydney14:41 → 11:1111:340 min11:340 min6 Apr
Suva16:41 → 13:1111:450 min11:4548 min6 Apr
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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