Ruling · Rambhā Tṛtīyā · 2012

Thursday 24 May

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 26 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Wednesday 23 May

Tṛtīyā is absent from madhyāhna. Not taken.

madhyāhna begins 11:13  12:01 madhyāhna ends
Tṛtīyā begins 12:26:44
10:2510:4911:1311:3712:0112:2512:49

0 of 48 minutes covered

Midday of Thursday 24 May

Taken. The only midday Tṛtīyā reaches.

madhyāhna begins 11:13  12:01 madhyāhna ends
10:2510:4911:1311:3712:0112:2512:49

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 12:27 on Wed 23 May to 14:19 on Thu 24 May.

    2012-05-23T04:26:44Z → 2012-05-24T06:19:15Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:13–12:01 on the 23rd, 11:13–12:01 on the 24th.

    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 23rd and 48 of 48 on the 24th.

    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: purvaviddha → only-day · margin 1539 s

  5. 05

    Ruling

    Rambhā Tṛtīyā, Daqing, 2012: Thursday 24 May.

    confidence: determinate

Say it like this

In Daqing, Rambhā Tṛtīyā 2012 falls on Thursday 24 May. Tṛtīyā runs from 12:27 on Wed 23 May to 14:19 on Thu 24 May and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2012/rambha-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 24 May
Ahargaṇa, classicalDisc centre, no refractionThu 24 May
compat-drikpanchangComparison profileWed 23 May
No institution has a recorded ruling for Daqing.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/rambha-tritiya · ruleset 2026.3-draft

Month
Jyeṣṭha, amānta
Pakṣa · aṅga
Śukla · Tṛtīyā
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 102

“S 3 Rambha trtiya (purvaviddha).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceTṛtīyāMadhyāhna 23rdCoveredMadhyāhna 24thCoveredRuled
Los Angeles21:27 → 23:1912:2648 min12:260 min23 May
Chicago23:27 → 01:1912:2448 min12:240 min23 May
Jersey City00:27 → 02:1912:2948 min12:290 min23 May
Port of Spain00:27 → 02:1911:3948 min11:390 min23 May
London05:27 → 07:1912:3448 min12:340 min23 May
Durban06:27 → 08:1911:2948 min11:290 min23 May
Dubai08:27 → 10:1911:5248 min11:520 min23 May
Delhi09:57 → 11:4911:5448 min11:540 min23 May
Kolkata09:57 → 11:4911:0948 min11:1040 min23 May
Singapore12:27 → 14:1912:3748 min12:3748 min23 May
Sydney14:27 → 16:1911:280 min11:2848 min24 May
Suva16:27 → 18:1911:390 min11:3948 min24 May
Profile · tradition
pac-rp@2026.1 · smarta
Rule
rambha-tritiya@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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