Ruling · Gaurī Tṛtīyā (Gangaur) · 1912

Thursday 21 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 345 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 Thursday 21 March

Taken. The only midday Tṛtīyā reaches.

madhyāhna begins 12:02  12:50 madhyāhna ends
11:1411:3812:0212:2612:5013:1413:38

48 of 48 minutes covered

Midday of Friday 22 March

Tṛtīyā is absent from madhyāhna. Not taken.

madhyāhna begins 12:02  12:50 madhyāhna ends
11:1411:3812:0212:2612:5013:1413:38

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 06:17 on Thu 21 Mar to 05:44 on Fri 22 Mar.

    1912-03-20T22:17:17Z → 1912-03-21T21:44:10Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:02–12:50 on the 21st, 12:02–12:50 on the 22nd.

    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 21st and 0 of 48 on the 22nd.

    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 20679 s

  5. 05

    Ruling

    Gaurī Tṛtīyā, Baoding, 1912: Thursday 21 March.

    confidence: determinate

Say it like this

In Baoding, Gaurī Tṛtīyā (Gangaur) 1912 falls on Thursday 21 March. Tṛtīyā runs from 06:17 on Thu 21 Mar to 05:44 on Fri 22 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1912/gauri-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 21 Mar
Ahargaṇa, classicalDisc centre, no refractionThu 21 Mar
compat-drikpanchangComparison profileThu 21 Mar
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 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles14:17 → 13:4411:370 min11:3748 min21 Mar
Chicago16:17 → 15:4411:350 min11:3448 min21 Mar
Jersey City17:17 → 16:4411:400 min11:4048 min21 Mar
Port of Spain18:17 → 17:4411:500 min11:4948 min21 Mar
London22:17 → 21:4411:450 min11:4448 min21 Mar
Durban00:17 → 23:4411:390 min11:3948 min21 Mar
Dubai01:58 → 01:2511:440 min11:4348 min21 Mar
Delhi03:47 → 03:1412:050 min12:0548 min21 Mar
Kolkata03:47 → 03:1411:200 min11:2048 min21 Mar
Singapore05:17 → 04:4411:480 min11:4848 min21 Mar
Sydney08:17 → 07:4411:390 min11:3848 min21 Mar
Suva10:12 → 09:3911:450 min11:4548 min21 Mar
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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