Ruling · Aghora Caturdaśī · 2091

Wednesday 12 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 25 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 11 September

Caturdaśī is absent from pradoṣa. Not taken.

18:33 sunsetpradoṣa ends 20:04
18:0918:3318:5719:2119:4520:0920:33

0 of 91 minutes covered

Evening of Wednesday 12 September

Taken. The only evening Caturdaśī reaches.

18:32 sunsetpradoṣa ends 20:03
Caturdaśī ends 20:27:50
18:0818:3218:5619:2019:4420:0820:32

92 of 92 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 22:52 on Tue 11 Sep to 20:28 on Wed 12 Sep.

    2091-09-11T14:51:42Z → 2091-09-12T12:27:51Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:33–20:04 on the 11th, 18:32–20:03 on the 12th.

    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 11th and 92 of 92 on the 12th.

    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 1481 s

  5. 05

    Ruling

    Aghora Caturdaśī, Baoding, 2091: Wednesday 12 September.

    confidence: determinate

Say it like this

In Baoding, Aghora Caturdaśī 2091 falls on Wednesday 12 September. Caturdaśī runs from 22:52 on Tue 11 Sep to 20:28 on Wed 12 Sep and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2091/aghora-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 12 Sep
Ahargaṇa, classicalDisc centre, no refractionWed 12 Sep
compat-drikpanchangComparison profileWed 12 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 11thCoveredSunset 12thCoveredRuled
Los Angeles07:52 → 05:2819:0592 min19:030 min11 Sep
Chicago09:52 → 07:2819:0691 min19:050 min11 Sep
Jersey City10:52 → 08:2819:1291 min19:100 min11 Sep
Port of Spain10:52 → 08:2818:0994 min18:090 min11 Sep
London15:52 → 13:2819:2489 min19:210 min11 Sep
Durban16:52 → 14:2817:4698 min17:470 min11 Sep
Dubai18:52 → 16:2818:2768 min18:260 min11 Sep
Delhi20:22 → 17:5818:310 min18:300 min11 Sep
Kolkata20:22 → 17:5817:440 min17:4315 min12 Sep
Singapore22:52 → 20:2819:050 min19:0583 min12 Sep
Sydney00:52 → 22:2817:440 min17:4598 min12 Sep
Suva02:52 → 00:2818:010 min18:0196 min12 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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