Ruling · Gaurī Tṛtīyā (Gangaur) · 2009

Sunday 29 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 425 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 Saturday 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 Sunday 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 21:38 on Sat 28 Mar to 19:53 on Sun 29 Mar.

    2009-03-28T13:38:09Z → 2009-03-29T11:52:38Z

  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 25520 s

  5. 05

    Ruling

    Gaurī Tṛtīyā, Baoding, 2009: Sunday 29 March.

    confidence: determinate

Say it like this

In Baoding, Gaurī Tṛtīyā (Gangaur) 2009 falls on Sunday 29 March. Tṛtīyā runs from 21:38 on Sat 28 Mar to 19:53 on Sun 29 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2009/gauri-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 29 Mar
Ahargaṇa, classicalDisc centre, no refractionSun 29 Mar
compat-drikpanchangComparison profileSun 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 Angeles06:38 → 04:5312:3448 min12:340 min28 Mar
Chicago08:38 → 06:5312:3248 min12:320 min28 Mar
Jersey City09:38 → 07:5312:3848 min12:370 min28 Mar
Port of Spain09:38 → 07:5311:4748 min11:470 min28 Mar
London13:38 → 12:5311:420 min12:4211 min29 Mar
Durban15:38 → 13:5311:370 min11:3648 min29 Mar
Dubai17:38 → 15:5312:000 min12:0048 min29 Mar
Delhi19:08 → 17:2312:020 min12:0248 min29 Mar
Kolkata19:08 → 17:2311:180 min11:1848 min29 Mar
Singapore21:38 → 19:5312:460 min12:4548 min29 Mar
Sydney00:38 → 22:5312:360 min12:3648 min29 Mar
Suva01:38 → 23:5311:470 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

About Ahargaṇa