Ruling · Aghora Caturdaśī · 1920

Saturday 11 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 170 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two evenings

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

Evening of Friday 10 September

Caturdaśī is absent from pradoṣa. Not taken.

18:35 sunsetpradoṣa ends 20:06
18:1118:3518:5919:2319:4720:1120:35

0 of 91 minutes covered

Evening of Saturday 11 September

Taken. The only evening Caturdaśī reaches.

18:34 sunsetpradoṣa ends 20:05
18:1018:3418:5819:2219:4620:1020:34

91 of 91 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 01:19 on Sat 11 Sep to 22:55 on Sat 11 Sep.

    1920-09-10T17:19:06Z → 1920-09-11T14:54:47Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:35–20:06 on the 10th, 18:34–20:05 on the 11th.

    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 91 minutes on the 10th and 91 of 91 on the 11th.

    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 10204 s

  5. 05

    Ruling

    Aghora Caturdaśī, Baoding, 1920: Saturday 11 September.

    confidence: determinate

Say it like this

In Baoding, Aghora Caturdaśī 1920 falls on Saturday 11 September. Caturdaśī runs from 01:19 on Sat 11 Sep to 22:55 on Sat 11 Sep and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1920/aghora-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 11 Sep
Ahargaṇa, classicalDisc centre, no refractionSat 11 Sep
compat-drikpanchangComparison profileSat 11 Sep
No institution has a recorded ruling for Baoding.

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 10thCoveredSunset 11thCoveredRuled
Los Angeles09:19 → 06:5518:0692 min18:050 min10 Sep
Chicago12:19 → 09:5519:0990 min19:070 min10 Sep
Jersey City13:19 → 10:5519:1491 min19:120 min10 Sep
Port of Spain13:19 → 10:5518:1094 min18:090 min10 Sep
London18:19 → 15:5519:2788 min19:250 min10 Sep
Durban19:19 → 16:5517:454 min17:460 min10 Sep
Dubai21:19 → 18:5518:280 min18:2727 min11 Sep
Delhi22:49 → 20:2518:320 min18:3192 min11 Sep
Kolkata22:49 → 20:2517:450 min17:4493 min11 Sep
Singapore00:19 → 21:5518:050 min18:0595 min11 Sep
Sydney03:19 → 00:5517:420 min17:4398 min11 Sep
Suva05:19 → 02:5518:000 min18:0097 min11 Sep
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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