Ruling · Aghora Caturdaśī · 2031

Saturday 16 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 513 minutes.

Decide it for

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 Saturday 16 August

Taken. The only evening Caturdaśī reaches.

19:12 sunsetpradoṣa ends 20:35
18:4819:1219:3620:0020:2420:4821:12

83 of 83 minutes covered

Evening of Sunday 17 August

Caturdaśī is absent from pradoṣa. Not taken.

19:11 sunsetpradoṣa ends 20:34
18:4719:1119:3519:5920:2320:4721:11

0 of 83 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 08:26 on Sat 16 Aug to 10:38 on Sun 17 Aug.

    2031-08-16T00:26:12Z → 2031-08-17T02:38:05Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:12–20:35 on the 16th, 19:11–20:34 on the 17th.

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

  3. 03

    Rule

    Caturdaśī must be present during pradoṣa. It covers 83 of 83 minutes on the 16th and 0 of 83 on the 17th.

    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 30761 s

  5. 05

    Ruling

    Aghora Caturdaśī, Baoding, 2031: Saturday 16 August.

    confidence: determinate

Say it like this

In Baoding, Aghora Caturdaśī 2031 falls on Saturday 16 August. Caturdaśī runs from 08:26 on Sat 16 Aug to 10:38 on Sun 17 Aug and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2031/aghora-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 16 Aug
Ahargaṇa, classicalDisc centre, no refractionSat 16 Aug
compat-drikpanchangComparison profileSat 16 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 16thCoveredSunset 17thCoveredRuled
Los Angeles17:26 → 19:3819:380 min19:370 min15 Aug
Chicago19:26 → 21:3819:4982 min19:480 min16 Aug
Jersey City20:26 → 22:3819:5382 min19:510 min16 Aug
Port of Spain20:26 → 22:3818:2492 min18:240 min16 Aug
London01:26 → 03:3820:2176 min20:190 min16 Aug
Durban02:26 → 04:3817:32103 min17:320 min16 Aug
Dubai04:26 → 06:3818:5388 min18:520 min16 Aug
Delhi05:56 → 08:0819:0087 min18:590 min16 Aug
Kolkata05:56 → 08:0818:0889 min18:070 min16 Aug
Singapore08:26 → 10:3819:1395 min19:130 min16 Aug
Sydney10:26 → 12:3817:26105 min17:260 min16 Aug
Suva12:26 → 14:3817:56100 min17:560 min16 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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