Midday of Tuesday 30 September
Taken. The only midday Navamī reaches.
madhyāhna begins 12:16 13:04 madhyāhna ends
11:2811:5212:1612:4013:0413:2813:52
48 of 48 minutes covered
Ruling · Mahānavamī · 2025
Determinatein Chicago, under the Rashtriya Panchang method. Clear of every threshold by 224 minutes.
One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.
Midday of Tuesday 30 September
Taken. The only midday Navamī reaches.
48 of 48 minutes covered
Midday of Wednesday 1 October
Navamī is absent from madhyāhna. Not taken.
0 of 48 minutes covered
Aṅga
Navamī runs from 07:37 on Tue 30 Sep to 08:32 on Wed 1 Oct.
2025-09-30T12:36:37Z → 2025-10-01T13:31:41Z
Kāla
Madhyāhna is 1 ghaṭikā either side of midday: 12:16–13:04 on the 30th, 12:16–13:04 on the 1st.
madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Navamī must be present during madhyāhna. It covers 48 of 48 minutes on the 30th and 0 of 48 on the 1st.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104
Tie-break
Only one midday qualifies. No tie-break is needed.
priority: purvaviddha → only-day · margin 13446 s
Ruling
Mahānavamī, Chicago, 2025: Tuesday 30 September.
confidence: determinate
In Chicago, Mahānavamī 2025 falls on Tuesday 30 September. Navamī runs from 07:37 on Tue 30 Sep to 08:32 on Wed 1 Oct and covers all of madhyāhna that midday.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Tue 30 Sep |
| Ahargaṇa, classical | Disc centre, no refraction | Tue 30 Sep |
| compat-drikpanchang | Comparison profile | Tue 30 Sep |
| No institution has a recorded ruling for Chicago. | ||
Institutional rulings are recorded with a source address, and are never edited to agree.
/rules/mahanavami · ruleset 2026.3-draft
“S 9 Mahanavami (purvaviddha) (In Bengal it is observed as paraviddha covering one muhurta from sunrise).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104. The Bengal reading (paraviddha, one muhūrta from sunrise) is not applied.
Twelve places, west to east. Local clock times.
| Place | Navamī | Madhyāhna 30th | Covered | Madhyāhna 1st | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 05:37 → 06:32 | 12:19 | 48 min | 12:18 | 0 min | 30 Sep |
| Chicago | 07:37 → 08:32 | 12:16 | 48 min | 12:16 | 0 min | 30 Sep |
| Jersey City | 08:37 → 09:32 | 12:22 | 48 min | 12:22 | 0 min | 30 Sep |
| Port of Spain | 08:37 → 09:32 | 11:32 | 48 min | 11:32 | 0 min | 30 Sep |
| London | 13:37 → 14:32 | 12:26 | 0 min | 12:26 | 48 min | 1 Oct |
| Durban | 14:37 → 15:32 | 11:22 | 0 min | 11:22 | 48 min | 1 Oct |
| Dubai | 16:37 → 17:32 | 11:45 | 0 min | 11:44 | 48 min | 1 Oct |
| Delhi | 18:07 → 19:02 | 11:47 | 0 min | 11:47 | 48 min | 1 Oct |
| Kolkata | 18:07 → 19:02 | 11:02 | 0 min | 11:02 | 48 min | 1 Oct |
| Singapore | 20:37 → 21:32 | 12:31 | 0 min | 12:30 | 48 min | 1 Oct |
| Sydney | 22:37 → 23:32 | 11:21 | 0 min | 11:21 | 48 min | 1 Oct |
| Suva | 00:37 → 01:32 | 11:33 | 0 min | 11:32 | 48 min | 1 Oct |