Ruling · Aghora Caturdaśī · 2052

Friday 23 August

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 0 min 14 s away. Say “contested”.

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 Thursday 22 August

Caturdaśī is absent from pradoṣa. Not taken.

19:03 sunsetpradoṣa ends 20:28
18:3919:0319:2719:5120:1520:3921:03

0 of 85 minutes covered

Evening of Friday 23 August

Taken. The only evening Caturdaśī reaches.

19:01 sunsetpradoṣa ends 20:27
Caturdaśī ends 20:26:44
18:3719:0119:2519:4920:1320:3721:01

85 of 85 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 22:12 on Thu 22 Aug to 20:27 on Fri 23 Aug.

    2052-08-22T14:12:02Z → 2052-08-23T12:26:44Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:03–20:28 on the 22nd, 19:01–20:27 on the 23rd.

    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 85 minutes on the 22nd and 85 of 85 on the 23rd.

    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 14 s < 300 s

  5. 05

    Ruling

    Aghora Caturdaśī, Baoding, 2052: Friday 23 August.

    confidence: boundary (margin)

Say it like this

In Baoding, Aghora Caturdaśī 2052 falls on Friday 23 August. Caturdaśī runs from 22:12 on Thu 22 Aug to 20:27 on Fri 23 Aug and covers all of pradoṣa that evening. It is 0 min 14 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/2052/aghora-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 23 Aug
Ahargaṇa, classicalDisc centre, no refractionFri 23 Aug
compat-drikpanchangComparison profileFri 23 Aug
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 22ndCoveredSunset 23rdCoveredRuled
Los Angeles07:12 → 05:2719:3087 min19:290 min22 Aug
Chicago09:12 → 07:2719:3984 min19:370 min22 Aug
Jersey City10:12 → 08:2719:4384 min19:410 min22 Aug
Port of Spain10:12 → 08:2718:2193 min18:200 min22 Aug
London15:12 → 13:2720:0779 min20:050 min22 Aug
Durban16:12 → 14:2717:36102 min17:360 min22 Aug
Dubai18:12 → 16:2718:4789 min18:460 min22 Aug
Delhi19:42 → 17:5718:5339 min18:520 min22 Aug
Kolkata19:42 → 17:5718:020 min18:010 min22 Aug
Singapore22:12 → 20:2719:120 min19:1175 min23 Aug
Sydney00:12 → 22:2717:310 min17:31103 min23 Aug
Suva02:12 → 00:2717:570 min17:5799 min23 Aug
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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