Ruling · Gaurī Tṛtīyā (Gangaur) · 1911

Sunday 2 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 7 min 16 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 Saturday 1 April

Tṛtīyā is absent from madhyāhna. Not taken.

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

0 of 48 minutes covered

Midday of Sunday 2 April

Taken. The only midday Tṛtīyā reaches.

madhyāhna begins 11:58  12:46 madhyāhna ends
Tṛtīyā ends 12:53:46
11:1011:3411:5812:2212:4613:1013:34

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 15:37 on Sat 1 Apr to 12:54 on Sun 2 Apr.

    1911-04-01T07:37:29Z → 1911-04-02T04:53:46Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 1st, 11:58–12:46 on the 2nd.

    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 1st and 48 of 48 on the 2nd.

    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 436 s

  5. 05

    Ruling

    Gaurī Tṛtīyā, Baoding, 1911: Sunday 2 April.

    confidence: determinate

Say it like this

In Baoding, Gaurī Tṛtīyā (Gangaur) 1911 falls on Sunday 2 April. Tṛtīyā runs from 15:37 on Sat 1 Apr to 12:54 on Sun 2 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1911/gauri-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 2 Apr
Ahargaṇa, classicalDisc centre, no refractionSun 2 Apr
compat-drikpanchangComparison profileSun 2 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 1stCoveredMadhyāhna 2ndCoveredRuled
Los Angeles23:37 → 20:5411:3348 min11:330 min1 Apr
Chicago01:37 → 22:5411:3148 min11:310 min1 Apr
Jersey City02:37 → 23:5411:3748 min11:370 min1 Apr
Port of Spain03:37 → 00:5411:4648 min11:460 min1 Apr
London07:37 → 04:5411:4148 min11:410 min1 Apr
Durban09:37 → 06:5411:3648 min11:360 min1 Apr
Dubai11:18 → 08:3511:4048 min11:400 min1 Apr
Delhi13:07 → 10:2412:020 min12:010 min2 Apr
Kolkata13:07 → 10:2411:170 min11:170 min2 Apr
Singapore14:37 → 11:5411:450 min11:459 min2 Apr
Sydney17:37 → 14:5411:350 min11:3548 min2 Apr
Suva19:32 → 16:4911:420 min11:4148 min2 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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