Ruling · Jitāṣṭamī (Jitiya) · 2022

Saturday 17 September

Boundaryin Daqing, under the Rashtriya Panchang method. Both evenings qualify and the rule does not say which to take. Say “contested”.

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

Taken. Both evenings qualify; the rule is silent, and this one is covered longer.

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

92 of 92 minutes covered

Evening of Sunday 18 September

Qualifies with 77 of 93 minutes. Not taken.

17:46 sunsetpradoṣa ends 19:19
Aṣṭamī ends 19:03:35
17:2217:4618:1018:3418:5819:2219:46

77 of 93 minutes covered, the first 77

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

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 16:45 on Sat 17 Sep to 19:04 on Sun 18 Sep.

    2022-09-17T08:44:43Z → 2022-09-18T11:03:35Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:48–19:21 on the 17th, 17:46–19:19 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 92 of 92 minutes on the 17th and 77 of 93 on the 18th.

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

  4. 04

    Tie-break

    Both evenings qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

    priority: unstated → greater-coverage · margin 936 s

  5. 05

    Ruling

    Jitāṣṭamī, Daqing, 2022: Saturday 17 September.

    confidence: boundary (tie-break-unstated)

Say it like this

In Daqing, Jitāṣṭamī (Jitiya) 2022 falls on Saturday 17 September. Aṣṭamī runs from 16:45 on Sat 17 Sep to 19:04 on Sun 18 Sep and covers all of pradoṣa that evening. It also reaches the next evening for 77 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.

ahargana.org/daqing/festivals/2022/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 17 Sep
Ahargaṇa, classicalDisc centre, no refractionSat 17 Sep
compat-drikpanchangComparison profileSat 17 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 Angeles01:45 → 04:0418:5694 min18:550 min17 Sep
Chicago03:45 → 06:0418:5693 min18:540 min17 Sep
Jersey City04:45 → 07:0419:0293 min19:000 min17 Sep
Port of Spain04:45 → 07:0418:0595 min18:040 min17 Sep
London09:45 → 12:0419:1092 min19:080 min17 Sep
Durban10:45 → 13:0417:4996 min17:500 min17 Sep
Dubai12:45 → 15:0418:2194 min18:200 min17 Sep
Delhi14:15 → 16:3418:2494 min18:230 min17 Sep
Kolkata14:15 → 16:3417:3894 min17:370 min17 Sep
Singapore16:45 → 19:0419:0295 min19:022 min17 Sep
Sydney18:45 → 21:0417:4839 min17:4896 min18 Sep
Suva20:45 → 23:0418:010 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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