Ruling · Jitāṣṭamī (Jitiya) · 1927

Sunday 18 September

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 223 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 Saturday 17 September

Aṣṭamī is absent from pradoṣa. Not taken.

17:50 sunsetpradoṣa ends 19:22
17:2617:5018:1418:3819:0219:2619:50

0 of 92 minutes covered

Evening of Sunday 18 September

Taken. The only evening Aṣṭamī reaches.

17:48 sunsetpradoṣa ends 19:21
17:2417:4818:1218:3619:0019:2419:48

92 of 92 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 00:04 on Sun 18 Sep to 23:04 on Sun 18 Sep.

    1927-09-17T16:04:29Z → 1927-09-18T15:03:58Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:50–19:22 on the 17th, 17:48–19:21 on the 18th.

    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 17th and 92 of 92 on the 18th.

    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 13397 s

  5. 05

    Ruling

    Jitāṣṭamī, Daqing, 1927: Sunday 18 September.

    confidence: determinate

Say it like this

In Daqing, Jitāṣṭamī (Jitiya) 1927 falls on Sunday 18 September. Aṣṭamī runs from 00:04 on Sun 18 Sep to 23:04 on Sun 18 Sep and covers all of pradoṣa that evening.

ahargana.org/daqing/festivals/1927/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 18 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 18 Sep
compat-drikpanchangComparison profileSun 18 Sep
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/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 17thCoveredSunset 18thCoveredRuled
Los Angeles08:04 → 07:0417:5893 min17:560 min17 Sep
Chicago11:04 → 10:0418:5893 min18:560 min17 Sep
Jersey City12:04 → 11:0419:0393 min19:020 min17 Sep
Port of Spain12:04 → 11:0418:0695 min18:050 min17 Sep
London17:04 → 16:0419:1391 min19:100 min17 Sep
Durban18:04 → 17:0417:4980 min17:490 min17 Sep
Dubai20:04 → 19:0418:220 min18:2143 min18 Sep
Delhi21:34 → 20:3418:250 min18:2494 min18 Sep
Kolkata21:34 → 20:3417:390 min17:3894 min18 Sep
Singapore23:04 → 22:0418:030 min18:0295 min18 Sep
Sydney02:04 → 01:0417:470 min17:4796 min18 Sep
Suva04:04 → 03:0418:010 min18:0196 min18 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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