Ruling · Aghora Caturdaśī · 1901

Wednesday 11 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 488 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 Tuesday 10 September

Caturdaśī is absent from pradoṣa. Not taken.

18:36 sunsetpradoṣa ends 20:06
18:1218:3619:0019:2419:4820:1220:36

0 of 91 minutes covered

Evening of Wednesday 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 04:14 on Wed 11 Sep to 04:32 on Thu 12 Sep.

    1901-09-10T20:13:58Z → 1901-09-11T20:32:06Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:36–20:06 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 29250 s

  5. 05

    Ruling

    Aghora Caturdaśī, Baoding, 1901: Wednesday 11 September.

    confidence: determinate

Say it like this

In Baoding, Aghora Caturdaśī 1901 falls on Wednesday 11 September. Caturdaśī runs from 04:14 on Wed 11 Sep to 04:32 on Thu 12 Sep and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1901/aghora-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 11 Sep
Ahargaṇa, classicalDisc centre, no refractionWed 11 Sep
compat-drikpanchangComparison profileWed 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 Angeles12:14 → 12:3218:0791 min18:060 min10 Sep
Chicago14:14 → 14:3218:0990 min18:080 min10 Sep
Jersey City15:14 → 15:3218:1490 min18:130 min10 Sep
Port of Spain16:14 → 16:3218:1094 min18:090 min10 Sep
London20:14 → 20:3218:280 min18:2689 min11 Sep
Durban21:44 → 22:0217:150 min17:1598 min11 Sep
Dubai23:55 → 00:1318:100 min18:0993 min11 Sep
Delhi01:35 → 01:5318:240 min18:2392 min11 Sep
Kolkata01:35 → 01:5317:370 min17:3693 min11 Sep
Singapore03:09 → 03:2718:000 min18:0095 min11 Sep
Sydney06:14 → 06:3217:420 min17:4398 min11 Sep
Suva08:09 → 08:2717:550 min17:5597 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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