Ruling · Durgā Saptamī · 2026

Saturday 17 October

Determinatein Chicago, under the Rashtriya Panchang method. Clear of every threshold by 548 minutes.

Decide it for

41°51′ N 87°39′ W · America/Chicago · GeoNames 4887398

The two mornings

One ghaṭī is 24 minutes. The first muhūrta after sunrise is 1st of 15 day muhūrtas.

Morning of Saturday 17 October

Taken. The only morning Saptamī reaches.

sunrise 07:06  07:50 one muhūrta on
06:1806:4207:0607:3007:5408:1808:42

44 of 44 minutes covered

Morning of Sunday 18 October

Saptamī is absent from the first muhūrta after sunrise. Not taken.

sunrise 07:07  07:51 one muhūrta on
06:1906:4307:0707:3107:5508:1908:43

0 of 44 minutes covered

Saptamī presentThe first muhūrta after sunrise, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 19:25 on Fri 16 Oct to 21:59 on Sat 17 Oct.

    2026-10-17T00:24:50Z → 2026-10-18T02:58:39Z

  2. 02

    Kāla

    The first muhūrta after sunrise is 1st of 15 day muhūrtas: 07:06–07:50 on the 17th, 07:07–07:51 on the 18th.

    udaya-1: day-muhurta-1-1 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Saptamī must hold through the first muhūrta after sunrise. It covers 44 of 44 minutes on the 17th and 0 of 44 on the 18th.

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

  4. 04

    Tie-break

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

    priority: paraviddha → only-day · margin 32888 s

  5. 05

    Ruling

    Durgā Saptamī, Chicago, 2026: Saturday 17 October.

    confidence: determinate

Say it like this

In Chicago, Durgā Saptamī 2026 falls on Saturday 17 October. Saptamī runs from 19:25 on Fri 16 Oct to 21:59 on Sat 17 Oct and covers all of the first muhūrta after sunrise that morning.

ahargana.org/chicago/festivals/2026/durga-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 17 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 17 Oct
compat-drikpanchangComparison profileSat 17 Oct
No institution has a recorded ruling for Chicago.

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

The rule, as data

/rules/durga-saptami · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Śukla · Saptamī
Kāla
The first muhūrta after sunrise
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 104

“S 7 Durga saptami (paraviddha) — covering one muhurta from sunrise” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceSaptamīSunrise 17thCoveredSunrise 18thCoveredRuled
Los Angeles17:25 → 19:5907:0045 min07:010 min17 Oct
Chicago19:25 → 21:5907:0644 min07:070 min17 Oct
Jersey City20:25 → 22:5907:1044 min07:110 min17 Oct
Port of Spain20:25 → 22:5905:5547 min05:550 min17 Oct
London01:25 → 03:5907:2842 min07:300 min17 Oct
Durban02:25 → 04:5905:1651 min05:150 min17 Oct
Dubai04:25 → 06:5906:1846 min06:1940 min17 Oct
Delhi05:55 → 08:2906:2346 min06:2446 min18 Oct
Kolkata05:55 → 08:2905:3426 min05:3446 min18 Oct
Singapore08:25 → 10:5906:480 min06:4848 min18 Oct
Sydney11:25 → 13:5906:120 min06:1152 min18 Oct
Suva12:25 → 14:5905:360 min05:3650 min18 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
durga-saptami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s