Ruling · Jitāṣṭamī (Jitiya) · 2040

Friday 28 September

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 271 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 Thursday 27 September

Aṣṭamī is absent from pradoṣa. Not taken.

17:27 sunsetpradoṣa ends 19:04
17:0317:2717:5118:1518:3919:0319:27

0 of 97 minutes covered

Evening of Friday 28 September

Taken. The only evening Aṣṭamī reaches.

17:25 sunsetpradoṣa ends 19:03
17:0117:2517:4918:1318:3719:0119:25

98 of 98 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 23:36 on Thu 27 Sep to 01:52 on Sat 29 Sep.

    2040-09-27T15:35:37Z → 2040-09-28T17:52:16Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:27–19:04 on the 27th, 17:25–19:03 on the 28th.

    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 97 minutes on the 27th and 98 of 98 on the 28th.

    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 16283 s

  5. 05

    Ruling

    Jitāṣṭamī, Daqing, 2040: Friday 28 September.

    confidence: determinate

Say it like this

In Daqing, Jitāṣṭamī (Jitiya) 2040 falls on Friday 28 September. Aṣṭamī runs from 23:36 on Thu 27 Sep to 01:52 on Sat 29 Sep and covers all of pradoṣa that evening.

ahargana.org/daqing/festivals/2040/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 28 Sep
Ahargaṇa, classicalDisc centre, no refractionFri 28 Sep
compat-drikpanchangComparison profileFri 28 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 27thCoveredSunset 28thCoveredRuled
Los Angeles08:36 → 10:5218:4197 min18:400 min27 Sep
Chicago10:36 → 12:5218:3897 min18:360 min27 Sep
Jersey City11:36 → 13:5218:4497 min18:420 min27 Sep
Port of Spain11:36 → 13:5217:5896 min17:580 min27 Sep
London16:36 → 18:5218:4698 min18:439 min27 Sep
Durban17:36 → 19:5217:5594 min17:5593 min27 Sep
Dubai19:36 → 21:5218:0910 min18:0896 min28 Sep
Delhi21:06 → 23:2218:110 min18:1096 min28 Sep
Kolkata21:06 → 23:2217:270 min17:2696 min28 Sep
Singapore23:36 → 01:5218:580 min18:5895 min28 Sep
Sydney01:36 → 03:5217:550 min17:5693 min28 Sep
Suva03:36 → 05:5218:030 min18:0394 min28 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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