Ruling · Gaurī Tṛtīyā (Gangaur) · 2025

Monday 31 March

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 176 minutes.

Decide it for

UjjainDelhiKolkataSingaporeSydneyJersey City

23°11′ N 75°47′ E · Asia/Kolkata · GeoNames 1253914

The two middays

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

Midday of Monday 31 March

Taken. The only midday Tṛtīyā reaches.

madhyāhna begins 12:07  12:55 madhyāhna ends
11:1911:4312:0712:3112:5513:1913:43

48 of 48 minutes covered

Midday of Tuesday 1 April

Tṛtīyā is absent from madhyāhna. Not taken.

madhyāhna begins 12:07  12:55 madhyāhna ends
11:1911:4312:0712:3112:5513:1913:43

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 09:12 on Mon 31 Mar to 05:43 on Tue 1 Apr.

    2025-03-31T03:41:33Z → 2025-04-01T00:12:49Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:07–12:55 on the 31st, 12:07–12:55 on the 1st.

    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 31st and 0 of 48 on the 1st.

    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 10538 s

  5. 05

    Ruling

    Gaurī Tṛtīyā, Ujjain, 2025: Monday 31 March.

    confidence: determinate

Say it like this

In Ujjain, Gaurī Tṛtīyā (Gangaur) 2025 falls on Monday 31 March. Tṛtīyā runs from 09:12 on Mon 31 Mar to 05:43 on Tue 1 Apr and covers all of madhyāhna that midday.

ahargana.org/ujjain/festivals/2025/gauri-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 31 Mar
Ahargaṇa, classicalDisc centre, no refractionMon 31 Mar
compat-drikpanchangComparison profileMon 31 Mar
Rashtriya PanchangPrincipal festivals, 2024-25Mon 31 Mar

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 31stCoveredMadhyāhna 1stCoveredRuled
Los Angeles20:42 → 17:1312:3348 min12:330 min31 Mar
Chicago22:42 → 19:1312:3148 min12:310 min31 Mar
Jersey City23:42 → 20:1312:3748 min12:360 min31 Mar
Port of Spain23:42 → 20:1311:4648 min11:460 min31 Mar
London04:42 → 01:1312:4148 min12:410 min31 Mar
Durban05:42 → 02:1311:3648 min11:350 min31 Mar
Dubai07:42 → 04:1311:5948 min11:590 min31 Mar
Delhi09:12 → 05:4312:0148 min12:010 min31 Mar
Kolkata09:12 → 05:4311:1748 min11:170 min31 Mar
Singapore11:42 → 08:1312:4548 min12:440 min31 Mar
Sydney14:42 → 11:1312:350 min12:350 min1 Apr
Suva15:42 → 12:1311:460 min11:4627 min1 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