Ruling · Aghora Caturdaśī · 2020

Monday 17 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 244 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 Monday 17 August

Taken. The only evening Caturdaśī reaches.

19:10 sunsetpradoṣa ends 20:33
18:4619:1019:3419:5820:2220:4621:10

83 of 83 minutes covered

Evening of Tuesday 18 August

Caturdaśī is absent from pradoṣa. Not taken.

19:09 sunsetpradoṣa ends 20:32
18:4519:0919:3319:5720:2120:4521:09

0 of 84 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 15:06 on Mon 17 Aug to 13:10 on Tue 18 Aug.

    2020-08-17T07:05:48Z → 2020-08-18T05:10:06Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 19:10–20:33 on the 17th, 19:09–20:32 on the 18th.

    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 17th and 0 of 84 on the 18th.

    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 14645 s

  5. 05

    Ruling

    Aghora Caturdaśī, Baoding, 2020: Monday 17 August.

    confidence: determinate

Say it like this

In Baoding, Aghora Caturdaśī 2020 falls on Monday 17 August. Caturdaśī runs from 15:06 on Mon 17 Aug to 13:10 on Tue 18 Aug and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2020/aghora-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 17 Aug
Ahargaṇa, classicalDisc centre, no refractionMon 17 Aug
compat-drikpanchangComparison profileMon 17 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 17thCoveredSunset 18thCoveredRuled
Los Angeles00:06 → 22:1019:3785 min19:350 min17 Aug
Chicago02:06 → 00:1019:4782 min19:450 min17 Aug
Jersey City03:06 → 01:1019:5083 min19:490 min17 Aug
Port of Spain03:06 → 01:1018:2392 min18:230 min17 Aug
London08:06 → 06:1020:1877 min20:160 min17 Aug
Durban09:06 → 07:1017:33103 min17:330 min17 Aug
Dubai11:06 → 09:1018:5188 min18:500 min17 Aug
Delhi12:36 → 10:4018:5887 min18:570 min17 Aug
Kolkata12:36 → 10:4018:0689 min18:060 min17 Aug
Singapore15:06 → 13:1019:1395 min19:130 min17 Aug
Sydney17:06 → 15:1017:27105 min17:270 min17 Aug
Suva19:06 → 17:1017:5630 min17:560 min17 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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