Ruling · Rambhā Tṛtīyā · 1901

Monday 20 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 280 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 Monday 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 Tuesday 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 07:11 on Mon 20 May to 04:36 on Tue 21 May.

    1901-05-19T23:11:04Z → 1901-05-20T20:36:22Z

  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 16777 s

  5. 05

    Ruling

    Rambhā Tṛtīyā, Baoding, 1901: Monday 20 May.

    confidence: determinate

Say it like this

In Baoding, Rambhā Tṛtīyā 1901 falls on Monday 20 May. Tṛtīyā runs from 07:11 on Mon 20 May to 04:36 on Tue 21 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1901/rambha-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 20 May
Ahargaṇa, classicalDisc centre, no refractionMon 20 May
compat-drikpanchangComparison profileMon 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 19thCoveredMadhyāhna 20thCoveredRuled
Los Angeles15:11 → 12:3611:250 min11:2548 min20 May
Chicago17:11 → 14:3611:230 min11:2348 min20 May
Jersey City18:11 → 15:3611:290 min11:2948 min20 May
Port of Spain19:11 → 16:3611:380 min11:3848 min20 May
London23:11 → 20:3611:330 min11:3348 min20 May
Durban00:41 → 22:0610:580 min10:5848 min20 May
Dubai02:52 → 00:1711:320 min11:3248 min20 May
Delhi04:32 → 01:5711:440 min11:4548 min20 May
Kolkata04:32 → 01:5711:000 min11:0048 min20 May
Singapore06:06 → 03:3111:320 min11:3248 min20 May
Sydney09:11 → 06:3611:270 min11:2748 min20 May
Suva11:06 → 08:3111:330 min11:3448 min20 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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