Ruling · Navarātrārambha (Navratri) · 1908

Saturday 26 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 625 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two middays

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

Midday of Friday 25 September

Pratipadā is absent from madhyāhna. Not taken.

madhyāhna begins 11:46  12:34 madhyāhna ends
10:5811:2211:4612:1012:3412:5813:22

0 of 48 minutes covered

Midday of Saturday 26 September

Taken. The only midday Pratipadā reaches.

madhyāhna begins 11:45  12:33 madhyāhna ends
10:5711:2111:4512:0912:3312:5713:21

48 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Pratipadā runs from 22:59 on Fri 25 Sep to 00:41 on Sun 27 Sep.

    1908-09-25T14:59:08Z → 1908-09-26T16:41:18Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 25th, 11:45–12:33 on the 26th.

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

  3. 03

    Rule

    Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 25th and 48 of 48 on the 26th.

    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: paraviddha → only-day · margin 37526 s

  5. 05

    Ruling

    Navarātrārambha, Baoding, 1908: Saturday 26 September.

    confidence: determinate

Say it like this

In Baoding, Navarātrārambha (Navratri) 1908 falls on Saturday 26 September. Pratipadā runs from 22:59 on Fri 25 Sep to 00:41 on Sun 27 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1908/navaratra-arambha · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 26 Sep
Ahargaṇa, classicalDisc centre, no refractionSat 26 Sep
compat-drikpanchangComparison profileSat 26 Sep
No institution has a recorded ruling for Baoding.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/navaratra-arambha · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Śukla · Pratipadā
Kāla
Madhyāhna
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 104

“S 1 Navaratrarambha (paraviddha).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePratipadāMadhyāhna 25thCoveredMadhyāhna 26thCoveredRuled
Los Angeles06:59 → 08:4111:2048 min11:200 min25 Sep
Chicago08:59 → 10:4111:1848 min11:180 min25 Sep
Jersey City09:59 → 11:4111:2448 min11:2318 min26 Sep
Port of Spain10:59 → 12:4111:3448 min11:3348 min26 Sep
London14:59 → 16:4111:280 min11:2748 min26 Sep
Durban16:59 → 18:4111:240 min11:2448 min26 Sep
Dubai18:40 → 20:2211:270 min11:2748 min26 Sep
Delhi20:29 → 22:1111:490 min11:4848 min26 Sep
Kolkata20:29 → 22:1111:040 min11:0448 min26 Sep
Singapore21:59 → 23:4111:320 min11:3248 min26 Sep
Sydney00:59 → 02:4111:230 min11:2348 min26 Sep
Suva02:54 → 04:3611:290 min11:2948 min26 Sep
Profile · tradition
pac-rp@2026.1 · smarta
Rule
navaratra-arambha@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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