Ruling · Gaurī Tṛtīyā (Gangaur) · 1905

Saturday 8 April

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 Friday 7 April

Qualifies with 33 of 48 minutes. Not taken.

madhyāhna begins 11:57  12:45 madhyāhna ends
Tṛtīyā begins 12:12:10
11:0911:3311:5712:2112:4513:0913:33

33 of 48 minutes covered, the last 33

Midday of Saturday 8 April

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

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

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 12:12 on Fri 7 Apr to 14:14 on Sat 8 Apr.

    1905-04-07T04:12:11Z → 1905-04-08T06:13:42Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 7th, 11:57–12:45 on the 8th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Tṛtīyā must be present during madhyāhna. It covers 33 of 48 minutes on the 7th and 48 of 48 on the 8th.

    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 918 s

  5. 05

    Ruling

    Gaurī Tṛtīyā, Baoding, 1905: Saturday 8 April.

    confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Gaurī Tṛtīyā (Gangaur) 1905 falls on Saturday 8 April. Tṛtīyā runs from 12:12 on Fri 7 Apr to 14:14 on Sat 8 Apr and covers all of madhyāhna that midday. It also reaches the previous midday for 33 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/1905/gauri-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 8 Apr
Ahargaṇa, classicalDisc centre, no refractionSat 8 Apr
compat-drikpanchangComparison profileSat 8 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 7thCoveredMadhyāhna 8thCoveredRuled
Los Angeles20:12 → 22:1411:3148 min11:310 min7 Apr
Chicago22:12 → 00:1411:2948 min11:290 min7 Apr
Jersey City23:12 → 01:1411:3548 min11:350 min7 Apr
Port of Spain00:12 → 02:1411:4448 min11:440 min7 Apr
London04:12 → 06:1411:3948 min11:390 min7 Apr
Durban06:12 → 08:1411:3448 min11:340 min7 Apr
Dubai07:53 → 09:5511:3848 min11:380 min7 Apr
Delhi09:33 → 11:3511:5148 min11:500 min7 Apr
Kolkata09:33 → 11:3511:0648 min11:0629 min7 Apr
Singapore11:07 → 13:0911:3848 min11:3848 min7 Apr
Sydney14:12 → 16:1411:330 min11:3348 min8 Apr
Suva16:07 → 18:0911:400 min11:3948 min8 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

About Ahargaṇa