Ruling · Rambhā Tṛtīyā · 2010

Tuesday 15 June

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 3 min 46 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 Monday 14 June

Tṛtīyā is absent from madhyāhna. Not taken.

madhyāhna begins 11:54  12:42 madhyāhna ends
11:0611:3011:5412:1812:4213:0613:30

0 of 48 minutes covered

Midday of Tuesday 15 June

Taken. Tṛtīyā reaches neither midday; the rule takes the second day.

madhyāhna begins 11:55  12:43 madhyāhna ends
Tṛtīyā ends 11:50:50
11:0711:3111:5512:1912:4313:0713:31

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 14:31 on Mon 14 Jun to 11:51 on Tue 15 Jun.

    2010-06-14T06:30:42Z → 2010-06-15T03:50:51Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 14th, 11:55–12:43 on the 15th.

    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 14th and 0 of 48 on the 15th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: purvaviddha → second-day · margin 226 s < 300 s

  5. 05

    Ruling

    Rambhā Tṛtīyā, Baoding, 2010: Tuesday 15 June.

    confidence: boundary (margin)

Say it like this

In Baoding, Rambhā Tṛtīyā 2010 falls on Tuesday 15 June. Tṛtīyā runs from 14:31 on Mon 14 Jun to 11:51 on Tue 15 Jun, and reaches madhyāhna on neither day. It is 3 min 46 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/2010/rambha-tritiya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 15 Jun
Ahargaṇa, classicalDisc centre, no refractionTue 15 Jun
compat-drikpanchangComparison profileTue 15 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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles23:31 → 20:5112:2948 min12:300 min14 Jun
Chicago01:31 → 22:5112:2748 min12:270 min14 Jun
Jersey City02:31 → 23:5112:3348 min12:330 min14 Jun
Port of Spain02:31 → 23:5111:4248 min11:430 min14 Jun
London07:31 → 04:5112:3748 min12:370 min14 Jun
Durban08:31 → 05:5111:3248 min11:320 min14 Jun
Dubai10:31 → 07:5111:5548 min11:550 min14 Jun
Delhi12:01 → 09:2111:5745 min11:580 min14 Jun
Kolkata12:01 → 09:2111:130 min11:130 min14 Jun
Singapore14:31 → 11:5112:410 min12:410 min15 Jun
Sydney16:31 → 13:5111:310 min11:3248 min15 Jun
Suva18:31 → 15:5111:420 min11:4348 min15 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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