Night of Wednesday 18 October
Qualifies with 34 of 48 minutes. Not taken.
niśītha begins 23:59 00:47 niśītha ends
Amāvasyā begins 00:13:18
23:1123:3523:5900:2300:4701:1101:35
34 of 48 minutes covered, the last 34
Ruling · Kālī Pūjā · 2017
Boundaryin Thāne, under the Rashtriya Panchang method. Both nights qualify and the rule does not say which to take. Say “contested”.
One ghaṭī is 24 minutes. Niśītha is 1 ghaṭikā either side of midnight.
Night of Wednesday 18 October
Qualifies with 34 of 48 minutes. Not taken.
34 of 48 minutes covered, the last 34
Night of Thursday 19 October
Taken. Both nights qualify; the rule is silent, and this one is covered longer.
43 of 48 minutes covered, the first 43
Aṅga
Amāvasyā runs from 00:13 on Thu 19 Oct to 00:42 on Fri 20 Oct.
2017-10-18T18:43:18Z → 2017-10-19T19:12:03Z
Kāla
Niśītha is 1 ghaṭikā either side of midnight: 23:59–00:47 on the 18th, 23:59–00:47 on the 19th.
nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Amāvasyā must be present during niśītha. It covers 34 of 48 minutes on the 18th and 43 of 48 on the 19th.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104
Tie-break
Both nights qualify and the rule marks neither. The one covered longer is ruled, as a boundary.
priority: unstated → greater-coverage · margin 307 s
Ruling
Kālī Pūjā, Thāne, 2017: Thursday 19 October.
confidence: boundary (tie-break-unstated)
In Thāne, Kālī Pūjā 2017 falls on Thursday 19 October. Amāvasyā runs from 00:13 on Thu 19 Oct to 00:42 on Fri 20 Oct and covers 43 of 48 minutes of niśītha that night. It also reaches the previous night for 34 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Thu 19 Oct |
| Ahargaṇa, classical | Disc centre, no refraction | Thu 19 Oct |
| compat-drikpanchang | Comparison profile | Thu 19 Oct |
| No institution has a recorded ruling for Thāne. | ||
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 18th | Covered | Niśītha 19th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 11:43 → 12:12 | 00:14 | 48 min | 00:14 | 0 min | 18 Oct |
| Chicago | 13:43 → 14:12 | 00:12 | 48 min | 00:12 | 0 min | 18 Oct |
| Jersey City | 14:43 → 15:12 | 00:18 | 48 min | 00:17 | 0 min | 18 Oct |
| Port of Spain | 14:43 → 15:12 | 23:27 | 48 min | 23:27 | 0 min | 18 Oct |
| London | 19:43 → 20:12 | 00:22 | 48 min | 00:22 | 0 min | 18 Oct |
| Durban | 20:43 → 21:12 | 23:17 | 48 min | 23:17 | 0 min | 18 Oct |
| Dubai | 22:43 → 23:12 | 23:40 | 48 min | 23:40 | 0 min | 18 Oct |
| Delhi | 00:13 → 00:42 | 23:42 | 17 min | 23:42 | 48 min | 19 Oct |
| Kolkata | 00:13 → 00:42 | 22:58 | 0 min | 22:58 | 48 min | 19 Oct |
| Singapore | 02:43 → 03:12 | 00:26 | 0 min | 00:26 | 48 min | 19 Oct |
| Sydney | 05:43 → 06:12 | 00:16 | 0 min | 00:16 | 48 min | 19 Oct |
| Suva | 06:43 → 07:12 | 23:27 | 0 min | 23:27 | 48 min | 19 Oct |