Ruling · Aghora Caturdaśī · 1908

Tuesday 25 August

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 361 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two evenings

One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.

Evening of Monday 24 August

Caturdaśī is absent from pradoṣa. Not taken.

18:35 sunsetpradoṣa ends 19:57
18:1118:3518:5919:2319:4720:1120:35

0 of 82 minutes covered

Evening of Tuesday 25 August

Taken. The only evening Caturdaśī reaches.

18:34 sunsetpradoṣa ends 19:56
18:1018:3418:5819:2219:4620:1020:34

82 of 82 minutes covered

Caturdaśī presentPradoṣa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Caturdaśī runs from 01:58 on Tue 25 Aug to 04:29 on Wed 26 Aug.

    1908-08-24T17:58:15Z → 1908-08-25T20:29:21Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:35–19:57 on the 24th, 18:34–19:56 on the 25th.

    pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Caturdaśī must be present during pradoṣa. It covers 0 of 82 minutes on the 24th and 82 of 82 on the 25th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Only one evening qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 21659 s

  5. 05

    Ruling

    Aghora Caturdaśī, Daqing, 1908: Tuesday 25 August.

    confidence: determinate

Say it like this

In Daqing, Aghora Caturdaśī 1908 falls on Tuesday 25 August. Caturdaśī runs from 01:58 on Tue 25 Aug to 04:29 on Wed 26 Aug and covers all of pradoṣa that evening.

ahargana.org/daqing/festivals/1908/aghora-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 25 Aug
Ahargaṇa, classicalDisc centre, no refractionTue 25 Aug
compat-drikpanchangComparison profileTue 25 Aug
No institution has a recorded ruling for Daqing.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/aghora-chaturdashi · ruleset 2026.3-draft

Month
Śrāvaṇa, amānta
Pakṣa · aṅga
Kṛṣṇa · Caturdaśī
Kāla
Pradoṣa
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 103

“K 14 Aghora caturdasi (pradosa vyapini).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceCaturdaśīSunset 24thCoveredSunset 25thCoveredRuled
Los Angeles09:58 → 12:2918:2987 min18:280 min24 Aug
Chicago11:58 → 14:2918:3784 min18:360 min24 Aug
Jersey City12:58 → 15:2918:4185 min18:400 min24 Aug
Port of Spain13:58 → 16:2918:2093 min18:190 min24 Aug
London17:58 → 20:2919:0579 min19:0380 min25 Aug
Durban19:58 → 22:2917:360 min17:36102 min25 Aug
Dubai21:39 → 00:1018:270 min18:2690 min25 Aug
Delhi23:28 → 01:5918:520 min18:5189 min25 Aug
Kolkata23:28 → 01:5918:010 min18:0090 min25 Aug
Singapore00:58 → 03:2918:110 min18:1195 min25 Aug
Sydney03:58 → 06:2917:310 min17:31103 min25 Aug
Suva05:53 → 08:2417:520 min17:5299 min25 Aug
Profile · tradition
pac-rp@2026.1 · smarta
Rule
aghora-chaturdashi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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