Ruling · Gaurī Tṛtīyā (Gangaur) · 2021

Wednesday 14 April

Determinatein Luanda, under the Rashtriya Panchang method. Clear of every threshold by 46 minutes.

Decide it for

LuandaDelhiKolkataSingaporeSydneyJersey City

8°50′ S 13°14′ E · Africa/Luanda · GeoNames 2240449

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Wednesday 14 April

Taken. The only midday Tṛtīyā reaches.

madhyāhna begins 11:43  12:31 madhyāhna ends
10:5511:1911:4312:0712:3112:5513:19

48 of 48 minutes covered

Midday of Thursday 15 April

Tṛtīyā is absent from madhyāhna. Not taken.

madhyāhna begins 11:43  12:31 madhyāhna ends
Tṛtīyā ends 10:57:30
10:5511:1911:4312:0712:3112:5513:19

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 08:18 on Wed 14 Apr to 10:58 on Thu 15 Apr.

    2021-04-14T07:18:08Z → 2021-04-15T09:57:31Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:43–12:31 on the 14th, 11:43–12:31 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 48 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

    Only one midday qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 2730 s

  5. 05

    Ruling

    Gaurī Tṛtīyā, Luanda, 2021: Wednesday 14 April.

    confidence: determinate

Say it like this

In Luanda, Gaurī Tṛtīyā (Gangaur) 2021 falls on Wednesday 14 April. Tṛtīyā runs from 08:18 on Wed 14 Apr to 10:58 on Thu 15 Apr and covers all of madhyāhna that midday.

ahargana.org/luanda/festivals/2021/gauri-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 14 Apr
Ahargaṇa, classicalDisc centre, no refractionWed 14 Apr
compat-drikpanchangComparison profileWed 14 Apr
No institution has a recorded ruling for Luanda.

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 Angeles00:18 → 02:5812:2948 min12:290 min14 Apr
Chicago02:18 → 04:5812:2748 min12:270 min14 Apr
Jersey City03:18 → 05:5812:3348 min12:330 min14 Apr
Port of Spain03:18 → 05:5811:4248 min11:420 min14 Apr
London08:18 → 10:5812:3748 min12:370 min14 Apr
Durban09:18 → 11:5811:3248 min11:3226 min14 Apr
Dubai11:18 → 13:5811:5548 min11:5548 min14 Apr
Delhi12:48 → 15:2811:580 min11:5748 min15 Apr
Kolkata12:48 → 15:2811:130 min11:1348 min15 Apr
Singapore15:18 → 17:5812:410 min12:4148 min15 Apr
Sydney17:18 → 19:5811:310 min11:3148 min15 Apr
Suva19:18 → 21:5811:430 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

About Ahargaṇa