Ruling · Paraśurāma Jayantī · 1964

Wednesday 13 May

Boundaryin Baoding, under the Rashtriya Panchang method. Tṛtīyā reaches pradoṣa on neither day and the rule does not say what then. Say “contested”.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two evenings

One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.

Evening of Wednesday 13 May

Taken. Tṛtīyā reaches neither evening; this is the day it falls on.

19:21 sunsetpradoṣa ends 20:39
18:5719:2119:4520:0920:3320:5721:21

0 of 78 minutes covered

Evening of Thursday 14 May

Tṛtīyā is absent from pradoṣa. Not taken.

19:22 sunsetpradoṣa ends 20:40
18:5819:2219:4620:1020:3420:5821:22

0 of 78 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Tṛtīyā runs from 21:43 on Wed 13 May to 18:18 on Thu 14 May.

    1964-05-13T13:43:09Z → 1964-05-14T10:18:06Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:21–20:39 on the 13th, 19:22–20:40 on the 14th.

    pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Tṛtīyā must be present during pradoṣa. It covers 0 of 78 minutes on the 13th and 0 of 78 on the 14th.

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

  4. 04

    Tie-break

    Neither evening qualifies. The day the tithi falls on is taken.

    priority: paraviddha → tithi-day · margin 3826 s

  5. 05

    Ruling

    Paraśurāma Jayantī, Baoding, 1964: Wednesday 13 May.

    confidence: boundary (absent-unstated)

Say it like this

In Baoding, Paraśurāma Jayantī 1964 falls on Wednesday 13 May. Tṛtīyā runs from 21:43 on Wed 13 May to 18:18 on Thu 14 May, and reaches pradoṣa on neither day.

ahargana.org/baoding/festivals/1964/parashurama-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 13 May
Ahargaṇa, classicalDisc centre, no refractionWed 13 May
compat-drikpanchangComparison profileWed 13 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/parashurama-jayanti · ruleset 2026.3-draft

Month
Vaiśākha, amānta
Pakṣa · aṅga
Śukla · Tṛtīyā
Kāla
Pradoṣa
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 102

“S 3 Aksaya trtiya (purvahna vyapini, paraviddha) (Special when combined with Rohini naksatra and Wednesday), Candanayatra, Parasurama jayanti (pradosavyapini — if occurs on two successive days, the second day is to be observed).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceTṛtīyāSunset 13thCoveredSunset 14thCoveredRuled
Los Angeles06:43 → 03:1819:4681 min19:470 min13 May
Chicago08:43 → 05:1820:0276 min20:030 min13 May
Jersey City09:43 → 06:1820:0477 min20:050 min13 May
Port of Spain09:43 → 06:1818:2091 min18:200 min13 May
London14:43 → 11:1820:4268 min20:440 min13 May
Durban15:43 → 12:1817:12107 min17:110 min13 May
Dubai17:43 → 14:1818:5585 min18:550 min13 May
Delhi19:13 → 15:4819:0374 min19:040 min13 May
Kolkata19:13 → 15:4818:0822 min18:090 min13 May
Singapore21:13 → 17:4818:360 min18:360 min13 May
Sydney23:43 → 20:1817:040 min17:03109 min14 May
Suva01:43 → 22:1817:410 min17:41102 min14 May
Profile · tradition
pac-rp@2026.1 · smarta
Rule
parashurama-jayanti@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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