Ruling · Kālī Pūjā (Śyāmā Pūjā) · 1971

Monday 18 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 461 minutes.

Decide it for

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

The two nights

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

Night of Monday 18 October

Taken. The only night Amāvasyā reaches.

niśītha begins 23:40  00:28 niśītha ends
22:5223:1623:4000:0400:2800:5201:16

48 of 48 minutes covered

Night of Tuesday 19 October

Amāvasyā is absent from niśītha. Not taken.

niśītha begins 23:40  00:28 niśītha ends
22:5223:1623:4000:0400:2800:5201:16

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 13:29 on Mon 18 Oct to 15:59 on Tue 19 Oct.

    1971-10-18T05:28:59Z → 1971-10-19T07:58:55Z

  2. 02

    Kāla

    Niśītha is 1 ghaṭikā either side of midnight: 23:40–00:28 on the 18th, 23:40–00:28 on the 19th.

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

  3. 03

    Rule

    Amāvasyā must be present during niśītha. It covers 48 of 48 minutes on the 18th and 0 of 48 on the 19th.

    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 27636 s

  5. 05

    Ruling

    Kālī Pūjā, Baoding, 1971: Monday 18 October.

    confidence: determinate

Say it like this

In Baoding, Kālī Pūjā 1971 falls on Monday 18 October. Amāvasyā runs from 13:29 on Mon 18 Oct to 15:59 on Tue 19 Oct and covers all of niśītha that night.

ahargana.org/baoding/festivals/1971/kali-puja · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 18 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 18 Oct
compat-drikpanchangComparison profileMon 18 Oct
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/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 18thCoveredNiśītha 19thCoveredRuled
Los Angeles22:29 → 00:5900:1445 min00:140 min17 Oct
Chicago00:29 → 02:5900:1248 min00:120 min18 Oct
Jersey City01:29 → 03:5900:1848 min00:180 min18 Oct
Port of Spain01:29 → 03:5923:2748 min23:270 min18 Oct
London06:29 → 08:5900:2248 min00:220 min18 Oct
Durban07:29 → 09:5923:1748 min23:170 min18 Oct
Dubai09:29 → 11:5923:4048 min23:400 min18 Oct
Delhi10:59 → 13:2923:4348 min23:420 min18 Oct
Kolkata10:59 → 13:2922:5848 min22:580 min18 Oct
Singapore12:59 → 15:2923:5648 min23:560 min18 Oct
Sydney15:29 → 17:5923:1648 min23:160 min18 Oct
Suva17:29 → 19:5923:2748 min23:270 min18 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

About Ahargaṇa