Ruling · Aghora Caturdaśī · 1966

Tuesday 13 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 457 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 13 September

Taken. The only evening Caturdaśī reaches.

18:31 sunsetpradoṣa ends 20:02
18:0718:3118:5519:1919:4320:0720:31

92 of 92 minutes covered

Evening of Wednesday 14 September

Caturdaśī is absent from pradoṣa. Not taken.

18:29 sunsetpradoṣa ends 20:01
18:0518:2918:5319:1719:4120:0520:29

0 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 10:54 on Tue 13 Sep to 07:07 on Wed 14 Sep.

    1966-09-13T02:53:51Z → 1966-09-13T23:07:25Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:31–20:02 on the 13th, 18:29–20:01 on the 14th.

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

  3. 03

    Rule

    Caturdaśī must be present during pradoṣa. It covers 92 of 92 minutes on the 13th and 0 of 92 on the 14th.

    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 27417 s

  5. 05

    Ruling

    Aghora Caturdaśī, Baoding, 1966: Tuesday 13 September.

    confidence: determinate

Say it like this

In Baoding, Aghora Caturdaśī 1966 falls on Tuesday 13 September. Caturdaśī runs from 10:54 on Tue 13 Sep to 07:07 on Wed 14 Sep and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1966/aghora-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 13 Sep
Ahargaṇa, classicalDisc centre, no refractionTue 13 Sep
compat-drikpanchangComparison profileTue 13 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 13thCoveredSunset 14thCoveredRuled
Los Angeles19:54 → 16:0719:020 min19:010 min12 Sep
Chicago21:54 → 18:0719:040 min19:020 min12 Sep
Jersey City22:54 → 19:0719:090 min19:070 min12 Sep
Port of Spain22:54 → 19:0718:0859 min18:070 min13 Sep
London03:54 → 00:0719:2090 min19:180 min13 Sep
Durban04:54 → 01:0717:4797 min17:470 min13 Sep
Dubai06:54 → 03:0718:2593 min18:240 min13 Sep
Delhi08:24 → 04:3718:2993 min18:280 min13 Sep
Kolkata08:24 → 04:3717:4293 min17:410 min13 Sep
Singapore10:24 → 06:3718:3495 min18:340 min13 Sep
Sydney12:54 → 09:0717:4498 min17:450 min13 Sep
Suva14:54 → 11:0718:0196 min18:010 min13 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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