Ruling · Jitāṣṭamī (Jitiya) · 2021

Wednesday 29 September

Determinatein Xining, under the Rashtriya Panchang method. Clear of every threshold by 9 min 32 s.

Decide it for

XiningDelhiKolkataSingaporeSydneyJersey City

36°38′ N 101°45′ E · Asia/Shanghai · GeoNames 1788852

The two evenings

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

Evening of Tuesday 28 September

Aṣṭamī is absent from pradoṣa. Not taken.

19:01 sunsetpradoṣa ends 20:38
Aṣṭamī begins 20:47:11
18:3719:0119:2519:4920:1320:3721:01

0 of 97 minutes covered

Evening of Wednesday 29 September

Taken. The only evening Aṣṭamī reaches.

18:59 sunsetpradoṣa ends 20:36
18:3518:5919:2319:4720:1120:3520:59

97 of 97 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 20:47 on Tue 28 Sep to 23:00 on Wed 29 Sep.

    2021-09-28T12:47:12Z → 2021-09-29T15:00:07Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:01–20:38 on the 28th, 18:59–20:36 on the 29th.

    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 28th and 97 of 97 on the 29th.

    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 572 s

  5. 05

    Ruling

    Jitāṣṭamī, Xining, 2021: Wednesday 29 September.

    confidence: determinate

Say it like this

In Xining, Jitāṣṭamī (Jitiya) 2021 falls on Wednesday 29 September. Aṣṭamī runs from 20:47 on Tue 28 Sep to 23:00 on Wed 29 Sep and covers all of pradoṣa that evening.

ahargana.org/xining/festivals/2021/jitashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 29 Sep
Ahargaṇa, classicalDisc centre, no refractionWed 29 Sep
compat-drikpanchangComparison profileWed 29 Sep
No institution has a recorded ruling for Xining.

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 28thCoveredSunset 29thCoveredRuled
Los Angeles05:47 → 08:0018:4197 min18:390 min28 Sep
Chicago07:47 → 10:0018:3797 min18:350 min28 Sep
Jersey City08:47 → 11:0018:4397 min18:410 min28 Sep
Port of Spain08:47 → 11:0017:5896 min17:570 min28 Sep
London13:47 → 16:0018:4498 min18:420 min28 Sep
Durban14:47 → 17:0017:5594 min17:560 min28 Sep
Dubai16:47 → 19:0018:0996 min18:0753 min28 Sep
Delhi18:17 → 20:3018:1090 min18:0997 min29 Sep
Kolkata18:17 → 20:3017:2746 min17:2696 min29 Sep
Singapore20:47 → 23:0018:580 min18:5895 min29 Sep
Sydney22:47 → 01:0017:550 min17:5693 min29 Sep
Suva00:47 → 03:0018:030 min18:0394 min29 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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