Ruling · Gaurī Tṛtīyā (Gangaur) · 1978

Monday 10 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 650 minutes.

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 Sunday 9 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

Midday of Monday 10 April

Taken. The only midday Tṛtīyā reaches.

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

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 23:34 on Sun 9 Apr to 00:33 on Tue 11 Apr.

    1978-04-09T15:34:12Z → 1978-04-10T16:33:01Z

  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 0 of 48 minutes on the 9th and 48 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 38999 s

  5. 05

    Ruling

    Gaurī Tṛtīyā, Baoding, 1978: Monday 10 April.

    confidence: determinate

Say it like this

In Baoding, Gaurī Tṛtīyā (Gangaur) 1978 falls on Monday 10 April. Tṛtīyā runs from 23:34 on Sun 9 Apr to 00:33 on Tue 11 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1978/gauri-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 10 Apr
Ahargaṇa, classicalDisc centre, no refractionMon 10 Apr
compat-drikpanchangComparison profileMon 10 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 Angeles07:34 → 08:3311:3148 min11:310 min9 Apr
Chicago09:34 → 10:3311:2948 min11:280 min9 Apr
Jersey City10:34 → 11:3311:3448 min11:340 min9 Apr
Port of Spain11:34 → 12:3311:4448 min11:4348 min9 Apr
London16:34 → 17:3312:390 min12:3848 min10 Apr
Durban17:34 → 18:3311:330 min11:3348 min10 Apr
Dubai19:34 → 20:3311:570 min11:5648 min10 Apr
Delhi21:04 → 22:0311:590 min11:5948 min10 Apr
Kolkata21:04 → 22:0311:140 min11:1448 min10 Apr
Singapore23:04 → 00:0312:120 min12:1248 min10 Apr
Sydney01:34 → 02:3311:330 min11:3248 min10 Apr
Suva03:34 → 04:3311:440 min11:4448 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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