Ruling · Kālī Pūjā · 2006

Saturday 21 October

Determinatein Tehran, under the Rashtriya Panchang method. Clear of every threshold by 372 minutes.

Decide it for

35°42′ N 51°25′ E · Asia/Tehran · GeoNames 112931

The two nights

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

Night of Friday 20 October

Amāvasyā is absent from niśītha. Not taken.

niśītha begins 23:25  00:13 niśītha ends
22:3723:0123:2523:4900:1300:3701:01

0 of 48 minutes covered

Night of Saturday 21 October

Taken. The only night Amāvasyā reaches.

niśītha begins 23:25  00:13 niśītha ends
22:3723:0123:2523:4900:1300:3701:01

48 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 06:25 on Sat 21 Oct to 08:44 on Sun 22 Oct.

    2006-10-21T02:55:18Z → 2006-10-22T05:14:03Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:25–00:13 on the 20th, 23:25–00:13 on the 21st.

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

  3. 03

    Rule

    Amāvasyā must be present during niśītha. It covers 0 of 48 minutes on the 20th and 48 of 48 on the 21st.

    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 22317 s

  5. 05

    Ruling

    Kālī Pūjā, Tehran, 2006: Saturday 21 October.

    confidence: determinate

Say it like this

In Tehran, Kālī Pūjā 2006 falls on Saturday 21 October. Amāvasyā runs from 06:25 on Sat 21 Oct to 08:44 on Sun 22 Oct and covers all of niśītha that night.

ahargana.org/tehran/festivals/2006/kali-puja · 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
No institution has a recorded ruling for Tehran.

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 21stCoveredNiśītha 22ndCoveredRuled
Los Angeles19:55 → 22:1400:140 min00:140 min20 Oct
Chicago21:55 → 00:1400:113 min00:110 min20 Oct
Jersey City22:55 → 01:1400:1748 min00:170 min20 Oct
Port of Spain22:55 → 01:1423:2748 min23:270 min20 Oct
London03:55 → 06:1400:2248 min00:210 min21 Oct
Durban04:55 → 07:1423:1648 min23:160 min21 Oct
Dubai06:55 → 09:1423:4048 min23:390 min21 Oct
Delhi08:25 → 10:4423:4248 min23:420 min21 Oct
Kolkata08:25 → 10:4422:5748 min22:570 min21 Oct
Singapore10:55 → 13:1400:2548 min00:250 min21 Oct
Sydney12:55 → 15:1423:1648 min23:150 min21 Oct
Suva14:55 → 17:1423:2748 min23:270 min21 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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