Ruling · Rambhā Tṛtīyā · 1977

Saturday 21 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 192 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 Friday 20 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

Midday of Saturday 21 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

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

How it was decided

  1. 01

    Aṅga

    Tṛtīyā runs from 15:50 on Fri 20 May to 18:07 on Sat 21 May.

    1977-05-20T07:50:23Z → 1977-05-21T10:06:52Z

  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 0 of 48 minutes on the 20th and 48 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 11494 s

  5. 05

    Ruling

    Rambhā Tṛtīyā, Baoding, 1977: Saturday 21 May.

    confidence: determinate

Say it like this

In Baoding, Rambhā Tṛtīyā 1977 falls on Saturday 21 May. Tṛtīyā runs from 15:50 on Fri 20 May to 18:07 on Sat 21 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1977/rambha-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 21 May
Ahargaṇa, classicalDisc centre, no refractionSat 21 May
compat-drikpanchangComparison profileSat 21 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 Angeles00:50 → 03:0712:2648 min12:260 min20 May
Chicago02:50 → 05:0712:2348 min12:230 min20 May
Jersey City03:50 → 06:0712:2948 min12:290 min20 May
Port of Spain03:50 → 06:0711:3948 min11:390 min20 May
London08:50 → 11:0712:3348 min12:330 min20 May
Durban09:50 → 12:0711:2848 min11:2839 min20 May
Dubai11:50 → 14:0711:5148 min11:5148 min20 May
Delhi13:20 → 15:3711:540 min11:5448 min21 May
Kolkata13:20 → 15:3711:090 min11:0948 min21 May
Singapore15:20 → 17:3712:070 min12:0748 min21 May
Sydney17:50 → 20:0711:270 min11:2848 min21 May
Suva19:50 → 22:0711:390 min11:3948 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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