Ruling · Jitāṣṭamī (Jitiya) · 2017

Wednesday 13 September

Determinatein Jiading, under the Rashtriya Panchang method. Clear of every threshold by 342 minutes.

Decide it for

JiadingDelhiKolkataSingaporeSydneyJersey City

31°23′ N 121°15′ E · Asia/Shanghai · GeoNames 1806508

The two evenings

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

Evening of Tuesday 12 September

Aṣṭamī is absent from pradoṣa. Not taken.

18:05 sunsetpradoṣa ends 19:37
17:4118:0518:2918:5319:1719:4120:05

0 of 92 minutes covered

Evening of Wednesday 13 September

Taken. The only evening Aṣṭamī reaches.

18:03 sunsetpradoṣa ends 19:36
17:3918:0318:2718:5119:1519:3920:03

93 of 93 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 03:32 on Wed 13 Sep to 01:18 on Thu 14 Sep.

    2017-09-12T19:31:57Z → 2017-09-13T17:18:15Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:05–19:37 on the 12th, 18:03–19:36 on the 13th.

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

  3. 03

    Rule

    Aṣṭamī must be present during pradoṣa. It covers 0 of 92 minutes on the 12th and 93 of 93 on the 13th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

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

    priority: unstated → only-day · margin 20527 s

  5. 05

    Ruling

    Jitāṣṭamī, Jiading, 2017: Wednesday 13 September.

    confidence: determinate

Say it like this

In Jiading, Jitāṣṭamī (Jitiya) 2017 falls on Wednesday 13 September. Aṣṭamī runs from 03:32 on Wed 13 Sep to 01:18 on Thu 14 Sep and covers all of pradoṣa that evening.

ahargana.org/jiading/festivals/2017/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 13 Sep
Ahargaṇa, classicalDisc centre, no refractionWed 13 Sep
compat-drikpanchangComparison profileWed 13 Sep
No institution has a recorded ruling for Jiading.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/jitashtami · ruleset 2026.3-draft

Month
Bhādrapada, amānta
Pakṣa · aṅga
Kṛṣṇa · Aṣṭamī
Kāla
Pradoṣa
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 103

“K 8 Mahalaksmi vrata samapana (current at moonrise), Jitastami (pradosa), Jimutavahana puja” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAṣṭamīSunset 12thCoveredSunset 13thCoveredRuled
Los Angeles12:32 → 10:1819:0392 min19:020 min12 Sep
Chicago14:32 → 12:1819:0491 min19:030 min12 Sep
Jersey City15:32 → 13:1819:1091 min19:080 min12 Sep
Port of Spain15:32 → 13:1818:0894 min18:080 min12 Sep
London20:32 → 18:1819:2119 min19:190 min12 Sep
Durban21:32 → 19:1817:470 min17:4791 min13 Sep
Dubai23:32 → 21:1818:260 min18:2593 min13 Sep
Delhi01:02 → 22:4818:300 min18:2893 min13 Sep
Kolkata01:02 → 22:4817:430 min17:4294 min13 Sep
Singapore03:32 → 01:1819:040 min19:0495 min13 Sep
Sydney05:32 → 03:1817:440 min17:4598 min13 Sep
Suva07:32 → 05:1818:000 min18:0196 min13 Sep
Profile · tradition
pac-rp@2026.1 · smarta
Rule
jitashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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