Ruling · Gaurī Tṛtīyā (Gangaur) · 1997

Thursday 10 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 6 min 59 s.

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 9 April

Tṛtīyā is absent from madhyāhna. Not taken.

madhyāhna begins 11:56  12:44 madhyāhna ends
11:0811:3211:5612:2012:4413:0813:32

0 of 48 minutes covered

Midday of Thursday 10 April

Taken. The only midday Tṛtīyā reaches.

madhyāhna begins 11:56  12:44 madhyāhna ends
Tṛtīyā ends 12:02:51
11:0811:3211:5612:2012:4413:0813:32

7 of 48 minutes covered, the first 7

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

How it was decided

  1. 01

    Aṅga

    Tṛtīyā runs from 13:52 on Wed 9 Apr to 12:03 on Thu 10 Apr.

    1997-04-09T05:51:32Z → 1997-04-10T04:02:52Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 9th, 11:56–12:44 on the 10th.

    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 9th and 7 of 48 on the 10th.

    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 419 s

  5. 05

    Ruling

    Gaurī Tṛtīyā, Baoding, 1997: Thursday 10 April.

    confidence: determinate

Say it like this

In Baoding, Gaurī Tṛtīyā (Gangaur) 1997 falls on Thursday 10 April. Tṛtīyā runs from 13:52 on Wed 9 Apr to 12:03 on Thu 10 Apr and covers 7 of 48 minutes of madhyāhna that midday.

ahargana.org/baoding/festivals/1997/gauri-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 10 Apr
Ahargaṇa, classicalDisc centre, no refractionThu 10 Apr
compat-drikpanchangComparison profileThu 10 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 9thCoveredMadhyāhna 10thCoveredRuled
Los Angeles22:52 → 21:0312:3148 min12:300 min9 Apr
Chicago00:52 → 23:0312:2848 min12:280 min9 Apr
Jersey City01:52 → 00:0312:3448 min12:340 min9 Apr
Port of Spain01:52 → 00:0311:4448 min11:430 min9 Apr
London06:52 → 05:0312:3948 min12:380 min9 Apr
Durban07:52 → 06:0311:3348 min11:330 min9 Apr
Dubai09:52 → 08:0311:5748 min11:560 min9 Apr
Delhi11:22 → 09:3311:5948 min11:590 min9 Apr
Kolkata11:22 → 09:3311:1441 min11:140 min9 Apr
Singapore13:52 → 12:0312:420 min12:420 min10 Apr
Sydney15:52 → 14:0311:330 min11:3248 min10 Apr
Suva17:52 → 16:0311:440 min11:4448 min10 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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