Day of Thursday 27 August
Taken. Both days qualify; the rule is silent, and this one is covered longer.
06:08 sunrisenext sunrise 06:08
Second half begins 21:32:46
05:4409:4413:4417:4421:4401:4405:44
515 of 1440 minutes covered, the last 515
Ruling · Rakṣā Bandhana (Rākhī Pūrṇimā) · 2026
Boundaryin Ujjain, under the Rashtriya Panchang method. Both days qualify and the rule does not say which to take. Say “contested”.
A tick is five ghaṭīs, two hours. The day is sunrise to the next sunrise.
Day of Thursday 27 August
Taken. Both days qualify; the rule is silent, and this one is covered longer.
515 of 1440 minutes covered, the last 515
Day of Friday 28 August
Qualifies with 221 of 1440 minutes. Not taken.
221 of 1440 minutes covered, the first 221
Aṅga
Pūrṇimā runs from 09:09 on Thu 27 Aug to 09:49 on Fri 28 Aug. Its second half begins at 21:33 on Thu 27 Aug.
2026-08-27T03:39:20Z → 2026-08-28T04:18:32Z · second half from 2026-08-27T16:02:47Z
Kāla
The day runs from sunrise to the next sunrise: from 06:08 on the 27th, and from 06:08 on the 28th.
day: sunrise-to-sunrise · sunrise: upper limb, 31′ + 16′
Rule
The second half of Pūrṇimā must be present during the day. It covers 515 of 1440 minutes on the 27th and 221 of 1440 on the 28th.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103
Tie-break
Both days qualify and the rule marks neither. The one covered longer is ruled, as a boundary.
priority: unstated → greater-coverage · margin 13238 s
Ruling
Rakṣā Bandhana, Ujjain, 2026: Thursday 27 August.
confidence: boundary (tie-break-unstated)
In Ujjain, Rakṣā Bandhana (Rakhi) 2026 falls on Thursday 27 August. The second half of Pūrṇimā runs from 21:33 on Thu 27 Aug to 09:49 on Fri 28 Aug and falls on two days: 515 minutes of it on the 27th, 221 on the 28th; the rule does not say which to take, and the day that holds more of it is ruled: treat the date as contested. Rashtriya Panchang recorded 28 August (Principal festivals, 2026-27).
| Authority | Kind | Date |
|---|---|---|
| Ahargaṇa, pac-rp | This ruling | Thu 27 Aug |
| Ahargaṇa, classical | Disc centre, no refraction | Thu 27 Aug |
| compat-drikpanchang | Comparison profile | Thu 27 Aug |
| Rashtriya Panchang | Principal festivals, 2026-27 | Fri 28 Aug |
Institutional rulings are recorded with a source address, and are never edited to agree.
/rules/raksha-bandhana · ruleset 2026.3-draft
“S 15 Rakhi purnima, Naroli purnima (Cocoanut day), Raksa Bandhana (in the second half of purnima), Rsi tarpana (madhyahna vyapini), Hayagriva utpatti, Jhulanayatra samapana” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.
Twelve places, west to east. Local clock times.
| Place | Second half | Sunrise 27th | Covered | Sunrise 28th | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 09:03 → 21:19 | 06:23 | 736 min | 06:24 | 0 min | 27 Aug |
| Chicago | 11:03 → 23:19 | 06:12 | 736 min | 06:13 | 0 min | 27 Aug |
| Jersey City | 12:03 → 00:19 | 06:19 | 736 min | 06:20 | 0 min | 27 Aug |
| Port of Spain | 12:03 → 00:19 | 05:57 | 736 min | 05:57 | 0 min | 27 Aug |
| London | 17:03 → 05:19 | 06:05 | 736 min | 06:07 | 0 min | 27 Aug |
| Durban | 18:03 → 06:19 | 06:17 | 733 min | 06:16 | 2 min | 27 Aug |
| Dubai | 20:03 → 08:19 | 05:58 | 595 min | 05:58 | 140 min | 27 Aug |
| Delhi | 21:33 → 09:49 | 05:57 | 504 min | 05:57 | 231 min | 27 Aug |
| Kolkata | 21:33 → 09:49 | 05:18 | 465 min | 05:18 | 270 min | 27 Aug |
| Singapore | 00:03 → 12:19 | 07:02 | 419 min | 07:02 | 317 min | 27 Aug |
| Sydney | 02:03 → 14:19 | 06:21 | 257 min | 06:19 | 479 min | 28 Aug |
| Suva | 04:03 → 16:19 | 06:18 | 135 min | 06:17 | 601 min | 28 Aug |