Ruling · Gaurī Tṛtīyā (Gangaur) · 1900

Monday 2 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 385 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 Sunday 1 April

Tṛtīyā is absent from madhyāhna. Not taken.

madhyāhna begins 12:04  12:52 madhyāhna ends
11:1611:4012:0412:2812:5213:1613:40

0 of 48 minutes covered

Midday of Monday 2 April

Taken. The only midday Tṛtīyā reaches.

madhyāhna begins 12:03  12:51 madhyāhna ends
11:1511:3912:0312:2712:5113:1513:39

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 21:53 on Sun 1 Apr to 19:16 on Mon 2 Apr.

    1900-04-01T13:47:55Z → 1900-04-02T11:11:09Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:04–12:52 on the 1st, 12:03–12:51 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 23091 s

  5. 05

    Ruling

    Gaurī Tṛtīyā, Baoding, 1900: Monday 2 April.

    confidence: determinate

Say it like this

In Baoding, Gaurī Tṛtīyā (Gangaur) 1900 falls on Monday 2 April. Tṛtīyā runs from 21:53 on Sun 1 Apr to 19:16 on Mon 2 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1900/gauri-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 2 Apr
Ahargaṇa, classicalDisc centre, no refractionMon 2 Apr
compat-drikpanchangComparison profileMon 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 Angeles05:48 → 03:1111:3348 min11:330 min1 Apr
Chicago07:48 → 05:1111:3148 min11:310 min1 Apr
Jersey City08:48 → 06:1111:3748 min11:360 min1 Apr
Port of Spain09:48 → 07:1111:4648 min11:460 min1 Apr
London13:48 → 11:1111:410 min11:410 min2 Apr
Durban15:18 → 12:4111:060 min11:0548 min2 Apr
Dubai17:29 → 14:5211:400 min11:4048 min2 Apr
Delhi19:09 → 16:3211:520 min11:5248 min2 Apr
Kolkata19:09 → 16:3211:080 min11:0848 min2 Apr
Singapore20:43 → 18:0611:400 min11:3948 min2 Apr
Sydney23:48 → 21:1111:350 min11:3548 min2 Apr
Suva01:43 → 23:0611:410 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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