Ruling · Gaurī Tṛtīyā (Gangaur) · 1964

Wednesday 15 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 54 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 Tuesday 14 April

Tṛtīyā is absent from madhyāhna. Not taken.

madhyāhna begins 11:55  12:43 madhyāhna ends
11:0711:3111:5512:1912:4313:0713:31

0 of 48 minutes covered

Midday of Wednesday 15 April

Taken. Tṛtīyā reaches neither midday; the rule takes the second day.

madhyāhna begins 11:55  12:43 madhyāhna ends
11:0711:3111:5512:1912:4313:0713:31

0 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 14:13 on Tue 14 Apr to 11:00 on Wed 15 Apr.

    1964-04-14T06:13:29Z → 1964-04-15T03:00:08Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 14th, 11:55–12:43 on the 15th.

    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 14th and 0 of 48 on the 15th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: unstated → second-day · margin 3266 s

  5. 05

    Ruling

    Gaurī Tṛtīyā, Baoding, 1964: Wednesday 15 April.

    confidence: determinate

Say it like this

In Baoding, Gaurī Tṛtīyā (Gangaur) 1964 falls on Wednesday 15 April. Tṛtīyā runs from 14:13 on Tue 14 Apr to 11:00 on Wed 15 Apr, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/1964/gauri-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 15 Apr
Ahargaṇa, classicalDisc centre, no refractionWed 15 Apr
compat-drikpanchangComparison profileWed 15 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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles22:13 → 19:0011:2948 min11:290 min14 Apr
Chicago00:13 → 21:0011:2748 min11:270 min14 Apr
Jersey City01:13 → 22:0011:3348 min11:330 min14 Apr
Port of Spain02:13 → 23:0011:4248 min11:420 min14 Apr
London07:13 → 04:0012:3748 min12:370 min14 Apr
Durban08:13 → 05:0011:3248 min11:320 min14 Apr
Dubai10:13 → 07:0011:5548 min11:550 min14 Apr
Delhi11:43 → 08:3011:5848 min11:570 min14 Apr
Kolkata11:43 → 08:3011:1318 min11:130 min14 Apr
Singapore13:43 → 10:3012:110 min12:110 min15 Apr
Sydney16:13 → 13:0011:310 min11:3148 min15 Apr
Suva18:13 → 15:0011:430 min11:4248 min15 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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