Ruling · Jitāṣṭamī (Jitiya) · 1982

Friday 10 September

Determinatein Datong, under the Rashtriya Panchang method. Clear of every threshold by 268 minutes.

Decide it for

40°06′ N 113°17′ E · Asia/Shanghai · GeoNames 2037799

The two evenings

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

Evening of Friday 10 September

Taken. The only evening Aṣṭamī reaches.

18:45 sunsetpradoṣa ends 20:15
18:2118:4519:0919:3319:5720:2120:45

90 of 90 minutes covered

Evening of Saturday 11 September

Aṣṭamī is absent from pradoṣa. Not taken.

18:43 sunsetpradoṣa ends 20:14
18:1918:4319:0719:3119:5520:1920:43

0 of 91 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 14:16 on Fri 10 Sep to 12:18 on Sat 11 Sep.

    1982-09-10T06:16:26Z → 1982-09-11T04:17:50Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:45–20:15 on the 10th, 18:43–20:14 on the 11th.

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

  3. 03

    Rule

    Aṣṭamī must be present during pradoṣa. It covers 90 of 90 minutes on the 10th and 0 of 91 on the 11th.

    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 16103 s

  5. 05

    Ruling

    Jitāṣṭamī, Datong, 1982: Friday 10 September.

    confidence: determinate

Say it like this

In Datong, Jitāṣṭamī (Jitiya) 1982 falls on Friday 10 September. Aṣṭamī runs from 14:16 on Fri 10 Sep to 12:18 on Sat 11 Sep and covers all of pradoṣa that evening.

ahargana.org/datong/festivals/1982/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 10 Sep
Ahargaṇa, classicalDisc centre, no refractionFri 10 Sep
compat-drikpanchangComparison profileFri 10 Sep
No institution has a recorded ruling for Datong.

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 10thCoveredSunset 11thCoveredRuled
Los Angeles23:16 → 21:1819:0692 min19:050 min10 Sep
Chicago01:16 → 23:1819:0990 min19:070 min10 Sep
Jersey City02:16 → 00:1819:1491 min19:120 min10 Sep
Port of Spain02:16 → 00:1818:1094 min18:090 min10 Sep
London07:16 → 05:1819:2788 min19:250 min10 Sep
Durban08:16 → 06:1817:4598 min17:460 min10 Sep
Dubai10:16 → 08:1818:2893 min18:270 min10 Sep
Delhi11:46 → 09:4818:3392 min18:310 min10 Sep
Kolkata11:46 → 09:4817:4593 min17:440 min10 Sep
Singapore14:16 → 12:1819:0595 min19:050 min10 Sep
Sydney16:16 → 14:1817:4399 min17:430 min10 Sep
Suva18:16 → 16:1818:0080 min18:000 min10 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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