Dawn of Tuesday 31 January
Qualifies with 62 of 111 minutes. Not taken.
05:35 aruṇodaya beginssunrise 07:26
Caturdaśī begins 06:23:26
05:1105:3505:5906:2306:4707:1107:3507:59
62 of 111 minutes covered, the last 62
Ruling · Yama Tarpaṇa · 2079
Boundaryin Baoding, under the Rashtriya Panchang method. Both dawns qualify and the rule does not say which to take. Say “contested”.
One ghaṭī is 24 minutes. Aruṇodaya is 2 muhūrtas before sunrise.
Dawn of Tuesday 31 January
Qualifies with 62 of 111 minutes. Not taken.
62 of 111 minutes covered, the last 62
Dawn of Wednesday 1 February
Taken. Both dawns qualify; the rule is silent, and this one is covered longer.
102 of 110 minutes covered, the first 102
Aṅga
Caturdaśī runs from 06:23 on Tue 31 Jan to 07:17 on Wed 1 Feb.
2079-01-30T22:23:26Z → 2079-01-31T23:16:31Z
Kāla
Aruṇodaya is 2 muhūrtas before sunrise: 05:35–07:26 on the 31st, 05:35–07:25 on the 1st.
arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′
Rule
Caturdaśī must be present during aruṇodaya. It covers 62 of 111 minutes on the 31st and 102 of 110 on the 1st.
Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105
Tie-break
Both dawns qualify and the rule marks neither. The one covered longer is ruled, as a boundary.
priority: unstated → greater-coverage · margin 505 s
Ruling
Yama Tarpaṇa, Baoding, 2079: Wednesday 1 February.
confidence: boundary (tie-break-unstated)
In Baoding, Yama Tarpaṇa 2079 falls on Wednesday 1 February. Caturdaśī runs from 06:23 on Tue 31 Jan to 07:17 on Wed 1 Feb and covers 102 of 110 minutes of aruṇodaya that dawn. It also reaches the previous dawn for 62 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 | Wed 1 Feb |
| Ahargaṇa, classical | Disc centre, no refraction | Wed 1 Feb |
| compat-drikpanchang | Comparison profile | Wed 1 Feb |
| No institution has a recorded ruling for Baoding. | ||
Institutional rulings are recorded with a source address, and are never edited to agree.
/rules/yama-tarpana · ruleset 2026.3-draft
“K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.
Twelve places, west to east. Local clock times.
| Place | Caturdaśī | Aruṇodaya 30th | Covered | Aruṇodaya 31st | Covered | Ruled |
|---|---|---|---|---|---|---|
| Los Angeles | 14:23 → 15:17 | 05:03 | 0 min | 05:03 | 108 min | 31 Jan |
| Chicago | 16:23 → 17:17 | 05:13 | 0 min | 05:12 | 112 min | 31 Jan |
| Jersey City | 17:23 → 18:17 | 05:17 | 0 min | 05:16 | 111 min | 31 Jan |
| Port of Spain | 18:23 → 19:17 | 04:51 | 0 min | 04:51 | 99 min | 31 Jan |
| London | 22:23 → 23:17 | 05:42 | 0 min | 05:41 | 119 min | 31 Jan |
| Durban | 00:23 → 01:17 | 04:00 | 0 min | 04:00 | 84 min | 31 Jan |
| Dubai | 02:23 → 03:17 | 05:18 | 0 min | 05:18 | 104 min | 31 Jan |
| Delhi | 03:53 → 04:47 | 05:25 | 0 min | 05:25 | 106 min | 31 Jan |
| Kolkata | 03:53 → 04:47 | 04:33 | 0 min | 04:33 | 103 min | 31 Jan |
| Singapore | 06:23 → 07:17 | 05:41 | 0 min | 05:41 | 53 min | 1 Feb |
| Sydney | 09:23 → 10:17 | 04:53 | 0 min | 04:54 | 0 min | 1 Feb |
| Suva | 10:23 → 11:17 | 04:23 | 0 min | 04:24 | 0 min | 1 Feb |