Ruling · Kālī Pūjā · 1913

Tuesday 28 October

Determinatein Chattogram, under the Rashtriya Panchang method. Clear of every threshold by 14 minutes.

Decide it for

22°20′ N 91°50′ E · Asia/Dhaka · GeoNames 1205733

The two nights

One ghaṭī is 24 minutes. Niśītha is 1 ghaṭikā either side of midnight.

Night of Tuesday 28 October

Taken. The only night Amāvasyā reaches.

niśītha begins 23:06  23:54 niśītha ends
Amāvasyā begins 23:40:11
22:1822:4223:0623:3023:5400:1800:42

14 of 48 minutes covered, the last 14

Night of Wednesday 29 October

Amāvasyā is absent from niśītha. Not taken.

niśītha begins 23:06  23:54 niśītha ends
22:1822:4223:0623:3023:5400:1800:42

0 of 48 minutes covered

Amāvasyā presentNiśītha, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Amāvasyā runs from 23:40 on Tue 28 Oct to 20:22 on Wed 29 Oct.

    1913-10-28T17:46:51Z → 1913-10-29T14:28:37Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:06–23:54 on the 28th, 23:06–23:54 on the 29th.

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

  3. 03

    Rule

    Amāvasyā must be present during niśītha. It covers 14 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 night qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 831 s

  5. 05

    Ruling

    Kālī Pūjā, Chattogram, 1913: Tuesday 28 October.

    confidence: determinate

Say it like this

In Chattogram, Kālī Pūjā 1913 falls on Tuesday 28 October. Amāvasyā runs from 23:40 on Tue 28 Oct to 20:22 on Wed 29 Oct and covers 14 of 48 minutes of niśītha that night.

ahargana.org/chattogram/festivals/1913/kali-puja · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 28 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 28 Oct
compat-drikpanchangComparison profileTue 28 Oct
No institution has a recorded ruling for Chattogram.

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

The rule, as data

/rules/kali-puja · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Kṛṣṇa · Amāvasyā
Kāla
Niśītha
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 104

“K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAmāvasyāNiśītha 28thCoveredNiśītha 29thCoveredRuled
Los Angeles09:47 → 06:2923:1348 min23:130 min28 Oct
Chicago11:47 → 08:2923:1148 min23:110 min28 Oct
Jersey City12:47 → 09:2923:1748 min23:160 min28 Oct
Port of Spain13:47 → 10:2923:2648 min23:260 min28 Oct
London17:47 → 14:2923:2148 min23:210 min28 Oct
Durban19:47 → 16:2923:1648 min23:160 min28 Oct
Dubai21:28 → 18:1023:2048 min23:200 min28 Oct
Delhi23:17 → 19:5923:4148 min23:410 min28 Oct
Kolkata23:17 → 19:5922:5728 min22:570 min28 Oct
Singapore00:47 → 21:2923:240 min23:240 min28 Oct
Sydney03:47 → 00:2923:150 min23:1548 min29 Oct
Suva05:42 → 02:2423:210 min23:2148 min29 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
kali-puja@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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