Night of Monday 20 October
Taken. The only night Amāvasyā reaches.
niśītha begins 00:16 01:04 niśītha ends
23:2823:5200:1600:4001:0401:2801:52
48 of 48 minutes covered
Ruling · Kālī Pūjā (Śyāmā Pūjā) · 2025
Determinatein Sydney, under the Rashtriya Panchang method. Clear of every threshold by 50 minutes.
Decide it for
33°52′ S 151°12′ E · Australia/Sydney · GeoNames 2147714
One ghaṭī is 24 minutes. Niśītha is 1 ghaṭikā either side of midnight.
Night of Monday 20 October
Taken. The only night Amāvasyā reaches.
48 of 48 minutes covered
Night of Tuesday 21 October
Amāvasyā is absent from niśītha. Not taken.
0 of 48 minutes covered
Aṅga
Amāvasyā runs from 21:15 on Mon 20 Oct to 23:25 on Tue 21 Oct.
2025-10-20T10:15:27Z → 2025-10-21T12:25:10Z
Kāla
Niśītha is 1 ghaṭikā either side of midnight: 00:16–01:04 on the 20th, 00:16–01:04 on the 21st.
nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Amāvasyā must be present during niśītha. It covers 48 of 48 minutes on the 20th and 0 of 48 on the 21st.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104
Tie-break
Only one night qualifies. No tie-break is needed.
priority: unstated → only-day · margin 3021 s
Ruling
Kālī Pūjā, Sydney, 2025: Monday 20 October.
confidence: determinate
In Sydney, Kālī Pūjā 2025 falls on Monday 20 October. Amāvasyā runs from 21:15 on Mon 20 Oct to 23:25 on Tue 21 Oct and covers all of niśītha that night.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Mon 20 Oct |
| Ahargaṇa, classical | Disc centre, no refraction | Mon 20 Oct |
| compat-drikpanchang | Comparison profile | Mon 20 Oct |
| No institution has a recorded ruling for Sydney. | ||
Institutional rulings are recorded with a source address, and are never edited to agree.
/rules/kali-puja · ruleset 2026.3-draft
“K 30 Kali puja (nisithavyapini), Dipavali or Diwali (pradosa), Mahalaksmipuja (pradosa)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.
Twelve places, west to east. Local clock times.
| Place | Amāvasyā | Niśītha 20th | Covered | Niśītha 21st | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 03:15 → 05:25 | 00:14 | 48 min | 00:14 | 0 min | 20 Oct |
| Chicago | 05:15 → 07:25 | 00:12 | 48 min | 00:11 | 0 min | 20 Oct |
| Jersey City | 06:15 → 08:25 | 00:17 | 48 min | 00:17 | 0 min | 20 Oct |
| Port of Spain | 06:15 → 08:25 | 23:27 | 48 min | 23:27 | 0 min | 20 Oct |
| London | 11:15 → 13:25 | 00:22 | 48 min | 00:22 | 0 min | 20 Oct |
| Durban | 12:15 → 14:25 | 23:16 | 48 min | 23:16 | 0 min | 20 Oct |
| Dubai | 14:15 → 16:25 | 23:40 | 48 min | 23:39 | 0 min | 20 Oct |
| Delhi | 15:45 → 17:55 | 23:42 | 48 min | 23:42 | 0 min | 20 Oct |
| Kolkata | 15:45 → 17:55 | 22:57 | 48 min | 22:57 | 0 min | 20 Oct |
| Singapore | 18:15 → 20:25 | 00:25 | 48 min | 00:25 | 0 min | 20 Oct |
| Sydney | 21:15 → 23:25 | 00:16 | 48 min | 00:16 | 0 min | 20 Oct |
| Suva | 22:15 → 00:25 | 23:27 | 48 min | 23:27 | 48 min | 20 Oct |