Ruling · Gaurī Tṛtīyā (Gangaur) · 2087

Saturday 5 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 110 minutes.

Decide it for

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 Saturday 5 April

Taken. The only midday Tṛtīyā reaches.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

48 of 48 minutes covered

Midday of Sunday 6 April

Tṛtīyā is absent from madhyāhna. Not taken.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

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 10:07 on Sat 5 Apr to 06:43 on Sun 6 Apr.

    2087-04-05T02:07:11Z → 2087-04-05T22:43:07Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 5th, 11:57–12:45 on the 6th.

    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 5th and 0 of 48 on the 6th.

    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 6617 s

  5. 05

    Ruling

    Gaurī Tṛtīyā, Baoding, 2087: Saturday 5 April.

    confidence: determinate

Say it like this

In Baoding, Gaurī Tṛtīyā (Gangaur) 2087 falls on Saturday 5 April. Tṛtīyā runs from 10:07 on Sat 5 Apr to 06:43 on Sun 6 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2087/gauri-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 5 Apr
Ahargaṇa, classicalDisc centre, no refractionSat 5 Apr
compat-drikpanchangComparison profileSat 5 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 5thCoveredMadhyāhna 6thCoveredRuled
Los Angeles19:07 → 15:4312:3248 min12:320 min5 Apr
Chicago21:07 → 17:4312:3048 min12:300 min5 Apr
Jersey City22:07 → 18:4312:3648 min12:350 min5 Apr
Port of Spain22:07 → 18:4311:4548 min11:450 min5 Apr
London03:07 → 23:4312:4048 min12:400 min5 Apr
Durban04:07 → 00:4311:3548 min11:340 min5 Apr
Dubai06:07 → 02:4311:5848 min11:580 min5 Apr
Delhi07:37 → 04:1312:0048 min12:000 min5 Apr
Kolkata07:37 → 04:1311:1648 min11:150 min5 Apr
Singapore10:07 → 06:4312:4448 min12:430 min5 Apr
Sydney13:07 → 08:4312:3415 min11:340 min5 Apr
Suva14:07 → 10:4311:450 min11:450 min6 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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