Ruling · Gaurī Tṛtīyā (Gangaur) · 1968

Sunday 31 March

Boundaryin Baoding, under the Rashtriya Panchang method. Both middays qualify and the rule does not say which to take. Say “contested”.

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 Sunday 31 March

Taken. Both middays qualify; the rule is silent, and this one is covered longer.

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

48 of 48 minutes covered

Midday of Monday 1 April

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:58  12:46 madhyāhna ends
Tṛtīyā ends 13:22:27
11:1011:3411:5812:2212:4613:1013:34

48 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 10:53 on Sun 31 Mar to 13:22 on Mon 1 Apr.

    1968-03-31T02:53:30Z → 1968-04-01T05:22:27Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 31st, 11:58–12:46 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 48 of 48 on the 1st.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Both middays qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

    priority: unstated → greater-coverage · margin 2161 s

  5. 05

    Ruling

    Gaurī Tṛtīyā, Baoding, 1968: Sunday 31 March.

    confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Gaurī Tṛtīyā (Gangaur) 1968 falls on Sunday 31 March. Tṛtīyā runs from 10:53 on Sun 31 Mar to 13:22 on Mon 1 Apr and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.

ahargana.org/baoding/festivals/1968/gauri-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 31 Mar
Ahargaṇa, classicalDisc centre, no refractionSun 31 Mar
compat-drikpanchangComparison profileSun 31 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 31stCoveredMadhyāhna 1stCoveredRuled
Los Angeles18:53 → 21:2211:3348 min11:330 min31 Mar
Chicago20:53 → 23:2211:3148 min11:310 min31 Mar
Jersey City21:53 → 00:2211:3748 min11:360 min31 Mar
Port of Spain22:53 → 01:2211:4648 min11:460 min31 Mar
London03:53 → 06:2212:4148 min12:410 min31 Mar
Durban04:53 → 07:2211:3648 min11:360 min31 Mar
Dubai06:53 → 09:2211:5948 min11:590 min31 Mar
Delhi08:23 → 10:5212:0248 min12:010 min31 Mar
Kolkata08:23 → 10:5211:1748 min11:170 min31 Mar
Singapore10:23 → 12:5212:1548 min12:1538 min31 Mar
Sydney12:53 → 15:2211:350 min11:3548 min1 Apr
Suva14:53 → 17:2211:460 min11:4648 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

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