Ruling · Paraśurāma Jayantī · 1921

Tuesday 10 May

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 143 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two evenings

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

Evening of Monday 9 May

Tṛtīyā is absent from pradoṣa. Not taken.

18:58 sunsetpradoṣa ends 20:12
18:3418:5819:2219:4620:1020:3420:58

0 of 74 minutes covered

Evening of Tuesday 10 May

Taken. The only evening Tṛtīyā reaches.

18:59 sunsetpradoṣa ends 20:13
18:3518:5919:2319:4720:1120:3520:59

74 of 74 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 01:02 on Tue 10 May to 22:36 on Tue 10 May.

    1921-05-09T17:02:01Z → 1921-05-10T14:35:51Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:58–20:12 on the 9th, 18:59–20:13 on the 10th.

    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 74 minutes on the 9th and 74 of 74 on the 10th.

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

  4. 04

    Tie-break

    Only one evening qualifies. No tie-break is needed.

    priority: paraviddha → only-day · margin 8560 s

  5. 05

    Ruling

    Paraśurāma Jayantī, Daqing, 1921: Tuesday 10 May.

    confidence: determinate

Say it like this

In Daqing, Paraśurāma Jayantī 1921 falls on Tuesday 10 May. Tṛtīyā runs from 01:02 on Tue 10 May to 22:36 on Tue 10 May and covers all of pradoṣa that evening.

ahargana.org/daqing/festivals/1921/parashurama-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 10 May
Ahargaṇa, classicalDisc centre, no refractionTue 10 May
compat-drikpanchangComparison profileTue 10 May
No institution has a recorded ruling for Daqing.

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 9thCoveredSunset 10thCoveredRuled
Los Angeles09:02 → 06:3618:4282 min18:430 min9 May
Chicago12:02 → 09:3619:5777 min19:580 min9 May
Jersey City13:02 → 10:3620:0078 min20:010 min9 May
Port of Spain13:02 → 10:3618:1991 min18:190 min9 May
London18:02 → 15:3620:3570 min20:370 min9 May
Durban19:02 → 16:3617:150 min17:140 min9 May
Dubai21:02 → 18:3618:520 min18:530 min9 May
Delhi22:32 → 20:0619:000 min19:0165 min10 May
Kolkata22:32 → 20:0618:060 min18:0787 min10 May
Singapore00:02 → 21:3618:060 min18:0695 min10 May
Sydney03:02 → 00:3617:070 min17:07108 min10 May
Suva05:02 → 02:3617:430 min17:42101 min10 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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