Ruling · Rambhā Tṛtīyā · 1919

Sunday 1 June

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 2 min 44 s away. Say “contested”.

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 31 May

Tṛtīyā is absent from madhyāhna. Not taken.

madhyāhna begins 12:52  13:40 madhyāhna ends
12:0412:2812:5213:1613:4014:0414:28

0 of 48 minutes covered

Midday of Sunday 1 June

Taken. The only midday Tṛtīyā reaches.

madhyāhna begins 12:52  13:40 madhyāhna ends
Tṛtīyā ends 12:54:29
12:0412:2812:5213:1613:4014:0414:28

3 of 48 minutes covered, the first 3

Tṛtīyā presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Tṛtīyā runs from 15:36 on Sat 31 May to 12:54 on Sun 1 Jun.

    1919-05-31T06:35:34Z → 1919-06-01T03:54:30Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:52–13:40 on the 31st, 12:52–13:40 on the 1st.

    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 31st and 3 of 48 on the 1st.

    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 164 s < 300 s

  5. 05

    Ruling

    Rambhā Tṛtīyā, Baoding, 1919: Sunday 1 June.

    confidence: boundary (margin)

Say it like this

In Baoding, Rambhā Tṛtīyā 1919 falls on Sunday 1 June. Tṛtīyā runs from 15:36 on Sat 31 May to 12:54 on Sun 1 Jun and covers 3 of 48 minutes of madhyāhna that midday. It is 2 min 44 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/1919/rambha-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 1 Jun
Ahargaṇa, classicalDisc centre, no refractionSun 1 Jun
compat-drikpanchangComparison profileSun 1 Jun
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 31stCoveredMadhyāhna 1stCoveredRuled
Los Angeles23:36 → 20:5412:2748 min12:270 min31 May
Chicago01:36 → 22:5412:2448 min12:240 min31 May
Jersey City02:36 → 23:5412:3048 min12:300 min31 May
Port of Spain02:36 → 23:5411:3948 min11:400 min31 May
London07:36 → 04:5412:3448 min12:340 min31 May
Durban08:36 → 05:5411:2948 min11:290 min31 May
Dubai10:17 → 07:3511:3348 min11:330 min31 May
Delhi12:06 → 09:2411:5437 min11:550 min31 May
Kolkata12:06 → 09:2411:100 min11:100 min1 Jun
Singapore13:36 → 10:5411:380 min11:380 min1 Jun
Sydney16:36 → 13:5411:280 min11:2848 min1 Jun
Suva18:36 → 15:5411:400 min11:4048 min1 Jun
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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