Ruling · Rambhā Tṛtīyā · 1990

Saturday 26 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 13 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 Saturday 26 May

Taken. The only midday Tṛtīyā reaches.

madhyāhna begins 12:51  13:39 madhyāhna ends
Tṛtīyā begins 13:25:52
12:0312:2712:5113:1513:3914:0314:27

13 of 48 minutes covered, the last 13

Midday of Sunday 27 May

Tṛtīyā is absent from madhyāhna. Not taken.

madhyāhna begins 12:51  13:39 madhyāhna ends
12:0312:2712:5113:1513:3914:0314:27

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 13:26 on Sat 26 May to 10:21 on Sun 27 May.

    1990-05-26T04:25:52Z → 1990-05-27T01:20:58Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:51–13:39 on the 26th, 12:51–13:39 on the 27th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Tṛtīyā must be present during madhyāhna. It covers 13 of 48 minutes on the 26th and 0 of 48 on the 27th.

    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 805 s

  5. 05

    Ruling

    Rambhā Tṛtīyā, Baoding, 1990: Saturday 26 May.

    confidence: determinate

Say it like this

In Baoding, Rambhā Tṛtīyā 1990 falls on Saturday 26 May. Tṛtīyā runs from 13:26 on Sat 26 May to 10:21 on Sun 27 May and covers 13 of 48 minutes of madhyāhna that midday.

ahargana.org/baoding/festivals/1990/rambha-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 26 May
Ahargaṇa, classicalDisc centre, no refractionSat 26 May
compat-drikpanchangComparison profileSat 26 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 26thCoveredMadhyāhna 27thCoveredRuled
Los Angeles21:26 → 18:2112:2648 min12:260 min26 May
Chicago23:26 → 20:2112:2448 min12:240 min26 May
Jersey City00:26 → 21:2112:3048 min12:300 min26 May
Port of Spain00:26 → 21:2111:3948 min11:390 min26 May
London05:26 → 02:2112:3448 min12:340 min26 May
Durban06:26 → 03:2111:2948 min11:290 min26 May
Dubai08:26 → 05:2111:5248 min11:520 min26 May
Delhi09:56 → 06:5111:5448 min11:540 min26 May
Kolkata09:56 → 06:5111:1048 min11:100 min26 May
Singapore12:26 → 09:2112:3848 min12:380 min26 May
Sydney14:26 → 11:2111:280 min11:280 min27 May
Suva16:26 → 13:2111:390 min11:3948 min27 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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