Ruling · Gaurī Tṛtīyā (Gangaur) · 2016

Saturday 9 April

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 3 min 05 s away. Say “contested”.

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 Saturday 9 April

Taken. The only midday Tṛtīyā reaches.

madhyāhna begins 11:56  12:44 madhyāhna ends
Tṛtīyā begins 11:52:57
11:0811:3211:5612:2012:4413:0813:32

48 of 48 minutes covered

Midday of Sunday 10 April

Tṛtīyā is absent from madhyāhna. Not taken.

madhyāhna begins 11:56  12:44 madhyāhna ends
11:0811:3211:5612:2012:4413:0813:32

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 11:53 on Sat 9 Apr to 08:26 on Sun 10 Apr.

    2016-04-09T03:52:57Z → 2016-04-10T00:25:54Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 9th, 11:56–12:44 on the 10th.

    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 9th and 0 of 48 on the 10th.

    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 185 s < 300 s

  5. 05

    Ruling

    Gaurī Tṛtīyā, Baoding, 2016: Saturday 9 April.

    confidence: boundary (margin)

Say it like this

In Baoding, Gaurī Tṛtīyā (Gangaur) 2016 falls on Saturday 9 April. Tṛtīyā runs from 11:53 on Sat 9 Apr to 08:26 on Sun 10 Apr and covers all of madhyāhna that midday. It is 3 min 05 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/2016/gauri-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 9 Apr
Ahargaṇa, classicalDisc centre, no refractionSat 9 Apr
compat-drikpanchangComparison profileSat 9 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 9thCoveredMadhyāhna 10thCoveredRuled
Los Angeles20:53 → 17:2612:3148 min12:300 min9 Apr
Chicago22:53 → 19:2612:2848 min12:280 min9 Apr
Jersey City23:53 → 20:2612:3448 min12:340 min9 Apr
Port of Spain23:53 → 20:2611:4448 min11:430 min9 Apr
London04:53 → 01:2612:3948 min12:380 min9 Apr
Durban05:53 → 02:2611:3348 min11:330 min9 Apr
Dubai07:53 → 04:2611:5648 min11:560 min9 Apr
Delhi09:23 → 05:5611:5948 min11:590 min9 Apr
Kolkata09:23 → 05:5611:1448 min11:140 min9 Apr
Singapore11:53 → 08:2612:4248 min12:420 min9 Apr
Sydney13:53 → 10:2611:330 min11:320 min10 Apr
Suva15:53 → 12:2611:440 min11:4442 min10 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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