Ruling · Gaurī Tṛtīyā (Gangaur) · 2051

Thursday 13 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 539 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 Thursday 13 April

Taken. The only midday Tṛtīyā reaches.

madhyāhna begins 11:55  12:43 madhyāhna ends
11:0711:3111:5512:1912:4313:0713:31

48 of 48 minutes covered

Midday of Friday 14 April

Tṛtīyā is absent from madhyāhna. Not taken.

madhyāhna begins 11:55  12:43 madhyāhna ends
11:0711:3111:5512:1912:4313:0713:31

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 02:56 on Thu 13 Apr to 23:57 on Thu 13 Apr.

    2051-04-12T18:56:23Z → 2051-04-13T15:57:15Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 13th, 11:55–12:43 on the 14th.

    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 13th and 0 of 48 on the 14th.

    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 32328 s

  5. 05

    Ruling

    Gaurī Tṛtīyā, Baoding, 2051: Thursday 13 April.

    confidence: determinate

Say it like this

In Baoding, Gaurī Tṛtīyā (Gangaur) 2051 falls on Thursday 13 April. Tṛtīyā runs from 02:56 on Thu 13 Apr to 23:57 on Thu 13 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2051/gauri-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 13 Apr
Ahargaṇa, classicalDisc centre, no refractionThu 13 Apr
compat-drikpanchangComparison profileThu 13 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles11:56 → 08:5712:3048 min12:300 min12 Apr
Chicago13:56 → 10:5712:280 min12:280 min13 Apr
Jersey City14:56 → 11:5712:330 min12:330 min13 Apr
Port of Spain14:56 → 11:5711:430 min11:4315 min13 Apr
London19:56 → 16:5712:380 min12:3848 min13 Apr
Durban20:56 → 17:5711:330 min11:3248 min13 Apr
Dubai22:56 → 19:5711:560 min11:5648 min13 Apr
Delhi00:26 → 21:2711:580 min11:5848 min13 Apr
Kolkata00:26 → 21:2711:140 min11:1348 min13 Apr
Singapore02:56 → 23:5712:420 min12:4148 min13 Apr
Sydney04:56 → 01:5711:320 min11:3248 min13 Apr
Suva06:56 → 03:5711:430 min11:4348 min13 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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