Ruling · Gaurī Tṛtīyā (Gangaur) · 1907

Monday 15 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 359 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 Monday 15 April

Taken. The only midday Tṛtīyā reaches.

madhyāhna begins 11:55  12:43 madhyāhna ends
11:0711:3111:5512:1912:4313:0713:31

48 of 48 minutes covered

Midday of Tuesday 16 April

Tṛtīyā is absent from madhyāhna. Not taken.

madhyāhna begins 11:55  12:43 madhyāhna ends
11:0711:3111:5512:1912:4313:0713:31

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 04:26 on Mon 15 Apr to 05:55 on Tue 16 Apr.

    1907-04-14T20:26:22Z → 1907-04-15T21:55:17Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 15th, 11:55–12:43 on the 16th.

    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 15th and 0 of 48 on the 16th.

    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 21558 s

  5. 05

    Ruling

    Gaurī Tṛtīyā, Baoding, 1907: Monday 15 April.

    confidence: determinate

Say it like this

In Baoding, Gaurī Tṛtīyā (Gangaur) 1907 falls on Monday 15 April. Tṛtīyā runs from 04:26 on Mon 15 Apr to 05:55 on Tue 16 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1907/gauri-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 15 Apr
Ahargaṇa, classicalDisc centre, no refractionMon 15 Apr
compat-drikpanchangComparison profileMon 15 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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles12:26 → 13:5511:300 min11:2948 min15 Apr
Chicago14:26 → 15:5511:270 min11:2748 min15 Apr
Jersey City15:26 → 16:5511:330 min11:3348 min15 Apr
Port of Spain16:26 → 17:5511:430 min11:4248 min15 Apr
London20:26 → 21:5511:380 min11:3748 min15 Apr
Durban22:26 → 23:5511:320 min11:3248 min15 Apr
Dubai00:07 → 01:3611:370 min11:3648 min15 Apr
Delhi01:56 → 03:2511:580 min11:5848 min15 Apr
Kolkata01:56 → 03:2511:130 min11:1348 min15 Apr
Singapore03:26 → 04:5511:410 min11:4148 min15 Apr
Sydney06:26 → 07:5511:320 min11:3148 min15 Apr
Suva08:21 → 09:5011:380 min11:3848 min15 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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