Night of Sunday 18 February
Caturdaśī is absent from niśītha. Not taken.
niśītha begins 23:30 00:18 niśītha ends
Caturdaśī begins 00:35:45
22:4223:0623:3023:5400:1800:4201:06
0 of 48 minutes covered
Ruling · Mahāśivarātri · 2080
Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 18 minutes.
One ghaṭī is 24 minutes. Niśītha is 1 ghaṭikā either side of midnight.
Night of Sunday 18 February
Caturdaśī is absent from niśītha. Not taken.
0 of 48 minutes covered
Night of Monday 19 February
Taken. The only night Caturdaśī reaches.
48 of 48 minutes covered
Aṅga
Caturdaśī runs from 00:36 on Mon 19 Feb to 02:35 on Tue 20 Feb.
2080-02-18T16:35:46Z → 2080-02-19T18:34:48Z
Kāla
Niśītha is 1 ghaṭikā either side of midnight: 23:30–00:18 on the 18th, 23:29–00:17 on the 19th.
nishita: midnight-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′
Rule
Caturdaśī must be present during niśītha. It covers 0 of 48 minutes on the 18th and 48 of 48 on the 19th.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105
Tie-break
Only one night qualifies. No tie-break is needed.
priority: disputed → only-day · margin 1092 s
Ruling
Mahāśivarātri, Daqing, 2080: Monday 19 February.
confidence: determinate
In Daqing, Mahāśivarātri 2080 falls on Monday 19 February. Caturdaśī runs from 00:36 on Mon 19 Feb to 02:35 on Tue 20 Feb and covers all of niśītha that night.
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Mon 19 Feb |
| Ahargaṇa, classical | Disc centre, no refraction | Mon 19 Feb |
| compat-drikpanchang | Comparison profile | Mon 19 Feb |
| No institution has a recorded ruling for Daqing. | ||
Institutional rulings are recorded with a source address, and are never edited to agree.
/rules/maha-shivaratri · ruleset 2026.3-draft
“K 14 Mahasivaratri (nisithavyapini) — In some opinion it is to be observed on nisitha and in some opinion on pradosa. If occurs on two successive nisithas then according to Hemadri it is to be observed on the first day and according to Madhava, to be observed on the second day” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105. The alternative opinion that reads pradoṣa instead of niśītha is not evaluated.
Twelve places, west to east. Local clock times.
| Place | Caturdaśī | Niśītha 18th | Covered | Niśītha 19th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 08:36 → 10:35 | 23:43 | 48 min | 23:43 | 0 min | 18 Feb |
| Chicago | 10:36 → 12:35 | 23:40 | 48 min | 23:40 | 0 min | 18 Feb |
| Jersey City | 11:36 → 13:35 | 23:46 | 48 min | 23:46 | 0 min | 18 Feb |
| Port of Spain | 12:36 → 14:35 | 23:56 | 48 min | 23:56 | 0 min | 18 Feb |
| London | 16:36 → 18:35 | 23:50 | 48 min | 23:50 | 0 min | 18 Feb |
| Durban | 18:36 → 20:35 | 23:46 | 48 min | 23:46 | 0 min | 18 Feb |
| Dubai | 20:36 → 22:35 | 00:09 | 48 min | 00:08 | 0 min | 18 Feb |
| Delhi | 22:06 → 00:05 | 00:11 | 48 min | 00:11 | 0 min | 18 Feb |
| Kolkata | 22:06 → 00:05 | 23:26 | 48 min | 23:26 | 39 min | 18 Feb |
| Singapore | 00:36 → 02:35 | 00:55 | 48 min | 00:55 | 48 min | 18 Feb |
| Sydney | 03:36 → 05:35 | 00:45 | 0 min | 00:45 | 48 min | 19 Feb |
| Suva | 04:36 → 06:35 | 23:56 | 0 min | 23:56 | 48 min | 19 Feb |