Ruling · Aghora Caturdaśī · 2080

Thursday 12 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 450 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 Wednesday 11 September

Caturdaśī is absent from pradoṣa. Not taken.

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

0 of 91 minutes covered

Evening of Thursday 12 September

Taken. The only evening Caturdaśī reaches.

18:30 sunsetpradoṣa ends 20:02
18:0618:3018:5419:1819:4220:0620:30

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 06:48 on Thu 12 Sep to 03:32 on Fri 13 Sep.

    2080-09-11T22:47:35Z → 2080-09-12T19:31:43Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:32–20:03 on the 11th, 18:30–20:02 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 26970 s

  5. 05

    Ruling

    Aghora Caturdaśī, Baoding, 2080: Thursday 12 September.

    confidence: determinate

Say it like this

In Baoding, Aghora Caturdaśī 2080 falls on Thursday 12 September. Caturdaśī runs from 06:48 on Thu 12 Sep to 03:32 on Fri 13 Sep and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2080/aghora-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 12 Sep
Ahargaṇa, classicalDisc centre, no refractionThu 12 Sep
compat-drikpanchangComparison profileThu 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 Angeles15:48 → 12:3219:0492 min19:020 min11 Sep
Chicago17:48 → 14:3219:0591 min19:030 min11 Sep
Jersey City18:48 → 15:3219:1091 min19:090 min11 Sep
Port of Spain18:48 → 15:3218:0955 min18:080 min11 Sep
London23:48 → 20:3219:220 min19:2072 min12 Sep
Durban00:48 → 21:3217:470 min17:4797 min12 Sep
Dubai02:48 → 23:3218:260 min18:2593 min12 Sep
Delhi04:18 → 01:0218:300 min18:2993 min12 Sep
Kolkata04:18 → 01:0217:430 min17:4293 min12 Sep
Singapore06:48 → 03:3219:050 min19:0495 min12 Sep
Sydney08:48 → 05:3217:440 min17:4598 min12 Sep
Suva10:48 → 07:3218:010 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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