Ruling · Jitāṣṭamī (Jitiya) · 1983

Thursday 29 September

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 39 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 29 September

Taken. The only evening Aṣṭamī reaches.

17:26 sunsetpradoṣa ends 19:03
17:0217:2617:5018:1418:3819:0219:26

97 of 97 minutes covered

Evening of Friday 30 September

Aṣṭamī is absent from pradoṣa. Not taken.

17:24 sunsetpradoṣa ends 19:01
17:0017:2417:4818:1218:3619:0019:24

0 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 16:46 on Thu 29 Sep to 15:16 on Fri 30 Sep.

    1983-09-29T08:46:21Z → 1983-09-30T07:16:27Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:26–19:03 on the 29th, 17:24–19:01 on the 30th.

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

  3. 03

    Rule

    Aṣṭamī must be present during pradoṣa. It covers 97 of 97 minutes on the 29th and 0 of 98 on the 30th.

    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 2350 s

  5. 05

    Ruling

    Jitāṣṭamī, Daqing, 1983: Thursday 29 September.

    confidence: determinate

Say it like this

In Daqing, Jitāṣṭamī (Jitiya) 1983 falls on Thursday 29 September. Aṣṭamī runs from 16:46 on Thu 29 Sep to 15:16 on Fri 30 Sep and covers all of pradoṣa that evening.

ahargana.org/daqing/festivals/1983/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 29 Sep
Ahargaṇa, classicalDisc centre, no refractionThu 29 Sep
compat-drikpanchangComparison profileThu 29 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 29thCoveredSunset 30thCoveredRuled
Los Angeles01:46 → 00:1618:4097 min18:390 min29 Sep
Chicago03:46 → 02:1618:3697 min18:340 min29 Sep
Jersey City04:46 → 03:1618:4297 min18:410 min29 Sep
Port of Spain04:46 → 03:1617:5896 min17:570 min29 Sep
London09:46 → 08:1618:4498 min18:420 min29 Sep
Durban10:46 → 09:1617:5594 min17:560 min29 Sep
Dubai12:46 → 11:1618:0896 min18:070 min29 Sep
Delhi14:16 → 12:4618:1096 min18:090 min29 Sep
Kolkata14:16 → 12:4617:2796 min17:260 min29 Sep
Singapore16:46 → 15:1618:5895 min18:580 min29 Sep
Sydney18:46 → 17:1617:5542 min17:560 min29 Sep
Suva20:46 → 19:1618:030 min18:0373 min30 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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