Ruling · Gaurī Tṛtīyā (Gangaur) · 1990

Thursday 29 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 284 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 Wednesday 28 March

Tṛtīyā is absent from madhyāhna. Not taken.

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

0 of 48 minutes covered

Midday of Thursday 29 March

Taken. The only midday Tṛtīyā reaches.

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

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 20:58 on Wed 28 Mar to 17:31 on Thu 29 Mar.

    1990-03-28T12:58:13Z → 1990-03-29T09:31:30Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 28th, 11:59–12:47 on the 29th.

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

  3. 03

    Rule

    Tṛtīyā must be present during madhyāhna. It covers 0 of 48 minutes on the 28th and 48 of 48 on the 29th.

    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 17045 s

  5. 05

    Ruling

    Gaurī Tṛtīyā, Baoding, 1990: Thursday 29 March.

    confidence: determinate

Say it like this

In Baoding, Gaurī Tṛtīyā (Gangaur) 1990 falls on Thursday 29 March. Tṛtīyā runs from 20:58 on Wed 28 Mar to 17:31 on Thu 29 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1990/gauri-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 29 Mar
Ahargaṇa, classicalDisc centre, no refractionThu 29 Mar
compat-drikpanchangComparison profileThu 29 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 28thCoveredMadhyāhna 29thCoveredRuled
Los Angeles04:58 → 01:3111:3448 min11:340 min28 Mar
Chicago06:58 → 03:3111:3248 min11:320 min28 Mar
Jersey City07:58 → 04:3111:3848 min11:370 min28 Mar
Port of Spain08:58 → 05:3111:4748 min11:470 min28 Mar
London13:58 → 10:3112:420 min12:420 min29 Mar
Durban14:58 → 11:3111:370 min11:370 min29 Mar
Dubai16:58 → 13:3112:000 min12:0048 min29 Mar
Delhi18:28 → 15:0112:020 min12:0248 min29 Mar
Kolkata18:28 → 15:0111:180 min11:1848 min29 Mar
Singapore20:58 → 17:3112:460 min12:4648 min29 Mar
Sydney22:58 → 19:3111:360 min11:3648 min29 Mar
Suva00:58 → 21:3111:470 min11:4748 min29 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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