Ruling · Durgā Navamī · 1922

Saturday 28 October

Determinatein Xining, under the Rashtriya Panchang method. Clear of every threshold by 34 minutes.

Decide it for

XiningDelhiKolkataSingaporeSydneyJersey City

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

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Saturday 28 October

Taken. The only midday Navamī reaches.

madhyāhna begins 12:33  13:21 madhyāhna ends
11:4512:0912:3312:5713:2113:4514:09

48 of 48 minutes covered

Midday of Sunday 29 October

Navamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:33  13:21 madhyāhna ends
Navamī ends 11:58:32
11:4512:0912:3312:5713:2113:4514:09

0 of 48 minutes covered

Navamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Navamī runs from 10:07 on Sat 28 Oct to 11:59 on Sun 29 Oct.

    1922-10-28T02:07:02Z → 1922-10-29T03:58:33Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:33–13:21 on the 28th, 12:33–13:21 on the 29th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Navamī must be present during madhyāhna. It covers 48 of 48 minutes on the 28th and 0 of 48 on the 29th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 2043 s

  5. 05

    Ruling

    Durgā Navamī, Xining, 1922: Saturday 28 October.

    confidence: determinate

Say it like this

In Xining, Durgā Navamī 1922 falls on Saturday 28 October. Navamī runs from 10:07 on Sat 28 Oct to 11:59 on Sun 29 Oct and covers all of madhyāhna that midday.

ahargana.org/xining/festivals/1922/durga-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 28 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 28 Oct
compat-drikpanchangComparison profileSat 28 Oct
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/durga-navami · ruleset 2026.3-draft

Month
Kārtika, amānta
Pakṣa · aṅga
Śukla · Navamī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 104

“S 9 Aksaya navami (purvahnavyapini), Jagaddhatri puja (Bengal), (udayavyapini one muhurta), Anla navami (Orissa), Durga navami (purvaviddha), Gauri vrata.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceNavamīMadhyāhna 28thCoveredMadhyāhna 29thCoveredRuled
Los Angeles18:07 → 19:5911:1348 min11:130 min28 Oct
Chicago20:07 → 21:5911:1048 min11:100 min28 Oct
Jersey City21:07 → 22:5911:1648 min11:160 min28 Oct
Port of Spain22:07 → 23:5911:2648 min11:260 min28 Oct
London02:07 → 03:5911:2048 min11:200 min28 Oct
Durban04:07 → 05:5911:1648 min11:160 min28 Oct
Dubai06:07 → 07:5911:3948 min11:380 min28 Oct
Delhi07:37 → 09:2911:4148 min11:410 min28 Oct
Kolkata07:37 → 09:2910:5648 min10:560 min28 Oct
Singapore09:07 → 10:5911:2548 min11:240 min28 Oct
Sydney12:07 → 13:5911:150 min11:1548 min29 Oct
Suva14:07 → 15:5911:260 min11:2648 min29 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
durga-navami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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