Ruling · Rambhā Tṛtīyā · 1914

Thursday 28 May

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 0 min 21 s away. 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 Wednesday 27 May

Tṛtīyā is absent from madhyāhna. Not taken.

madhyāhna begins 11:51  12:39 madhyāhna ends
Tṛtīyā begins 12:39:32
11:0311:2711:5112:1512:3913:0313:27

0 of 48 minutes covered

Midday of Thursday 28 May

Taken. The only midday Tṛtīyā reaches.

madhyāhna begins 11:51  12:39 madhyāhna ends
Tṛtīyā ends 13:06:15
11:0311:2711:5112:1512:3913:0313:27

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 12:40 on Wed 27 May to 13:06 on Thu 28 May.

    1914-05-27T04:39:32Z → 1914-05-28T05:06:15Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 27th, 11:51–12:39 on the 28th.

    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 27th and 48 of 48 on the 28th.

    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 21 s < 300 s

  5. 05

    Ruling

    Rambhā Tṛtīyā, Baoding, 1914: Thursday 28 May.

    confidence: boundary (margin)

Say it like this

In Baoding, Rambhā Tṛtīyā 1914 falls on Thursday 28 May. Tṛtīyā runs from 12:40 on Wed 27 May to 13:06 on Thu 28 May and covers all of madhyāhna that midday. It is 0 min 21 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/1914/rambha-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 28 May
Ahargaṇa, classicalDisc centre, no refractionThu 28 May
compat-drikpanchangComparison profileWed 27 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 27thCoveredMadhyāhna 28thCoveredRuled
Los Angeles20:40 → 21:0611:2648 min11:260 min27 May
Chicago22:40 → 23:0611:2448 min11:240 min27 May
Jersey City23:40 → 00:0611:2948 min11:300 min27 May
Port of Spain00:40 → 01:0611:3948 min11:390 min27 May
London04:40 → 05:0611:3448 min11:340 min27 May
Durban06:40 → 07:0611:2948 min11:290 min27 May
Dubai08:21 → 08:4711:3348 min11:330 min27 May
Delhi10:10 → 10:3611:5448 min11:540 min27 May
Kolkata10:10 → 10:3611:0948 min11:100 min27 May
Singapore11:40 → 12:0611:3746 min11:3829 min27 May
Sydney14:40 → 15:0611:280 min11:2848 min28 May
Suva16:35 → 17:0111:340 min11:3448 min28 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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