Ruling · Durgā Saptamī · 2023

Saturday 21 October

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 421 minutes.

Decide it for

23°11′ N 75°47′ E · Asia/Kolkata · GeoNames 1253914

The two mornings

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

Morning of Saturday 21 October

Taken. The only morning Saptamī reaches.

sunrise 06:26  07:12 one muhūrta on
05:3806:0206:2606:5007:1407:3808:02

46 of 46 minutes covered

Morning of Sunday 22 October

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

sunrise 06:27  07:13 one muhūrta on
05:3906:0306:2706:5107:1507:3908:03

0 of 46 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 23:25 on Fri 20 Oct to 21:54 on Sat 21 Oct.

    2023-10-20T17:55:23Z → 2023-10-21T16:23:54Z

  2. 02

    Kāla

    The first muhūrta after sunrise is 1st of 15 day muhūrtas: 06:26–07:12 on the 21st, 06:27–07:13 on the 22nd.

    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 46 of 46 minutes on the 21st and 0 of 46 on the 22nd.

    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 25264 s

  5. 05

    Ruling

    Durgā Saptamī, Ujjain, 2023: Saturday 21 October.

    confidence: determinate

Say it like this

In Ujjain, Durgā Saptamī 2023 falls on Saturday 21 October. Saptamī runs from 23:25 on Fri 20 Oct to 21:54 on Sat 21 Oct and covers all of the first muhūrta after sunrise that morning.

ahargana.org/ujjain/festivals/2023/durga-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 21 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 21 Oct
compat-drikpanchangComparison profileSat 21 Oct
Rashtriya PanchangPrincipal festivals, 2023-24Sat 21 Oct

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 20thCoveredSunrise 21stCoveredRuled
Los Angeles10:55 → 09:2407:020 min07:0345 min21 Oct
Chicago12:55 → 11:2407:090 min07:1043 min21 Oct
Jersey City13:55 → 12:2407:130 min07:1444 min21 Oct
Port of Spain13:55 → 12:2405:560 min05:5647 min21 Oct
London18:55 → 17:2407:330 min07:3541 min21 Oct
Durban19:55 → 18:2405:130 min05:1252 min21 Oct
Dubai21:55 → 20:2406:190 min06:2046 min21 Oct
Delhi23:25 → 21:5406:250 min06:2645 min21 Oct
Kolkata23:25 → 21:5405:350 min05:3646 min21 Oct
Singapore01:55 → 00:2406:470 min06:4748 min21 Oct
Sydney04:55 → 03:2406:090 min06:0852 min21 Oct
Suva05:55 → 04:2405:350 min05:3429 min21 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