Ruling · Rambhā Tṛtīyā · 2015

Wednesday 20 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 175 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 Wednesday 20 May

Taken. The only midday Tṛtīyā reaches.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

48 of 48 minutes covered

Midday of Thursday 21 May

Tṛtīyā is absent from madhyāhna. Not taken.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

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 08:56 on Wed 20 May to 08:10 on Thu 21 May.

    2015-05-20T00:55:56Z → 2015-05-21T00:09:56Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 20th, 11:51–12:39 on the 21st.

    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 20th and 0 of 48 on the 21st.

    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 10498 s

  5. 05

    Ruling

    Rambhā Tṛtīyā, Baoding, 2015: Wednesday 20 May.

    confidence: determinate

Say it like this

In Baoding, Rambhā Tṛtīyā 2015 falls on Wednesday 20 May. Tṛtīyā runs from 08:56 on Wed 20 May to 08:10 on Thu 21 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2015/rambha-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 20 May
Ahargaṇa, classicalDisc centre, no refractionWed 20 May
compat-drikpanchangComparison profileWed 20 May
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/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 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles17:56 → 17:1012:2648 min12:260 min20 May
Chicago19:56 → 19:1012:2348 min12:230 min20 May
Jersey City20:56 → 20:1012:2948 min12:290 min20 May
Port of Spain20:56 → 20:1011:3948 min11:390 min20 May
London01:56 → 01:1012:3348 min12:340 min20 May
Durban02:56 → 02:1011:2848 min11:280 min20 May
Dubai04:56 → 04:1011:5148 min11:510 min20 May
Delhi06:26 → 05:4011:5448 min11:540 min20 May
Kolkata06:26 → 05:4011:0948 min11:090 min20 May
Singapore08:56 → 08:1012:3748 min12:370 min20 May
Sydney10:56 → 10:1011:2848 min11:280 min20 May
Suva12:56 → 12:1011:390 min11:3931 min21 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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