Ruling · Aghora Caturdaśī · 1975

Thursday 4 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 480 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 Thursday 4 September

Taken. The only evening Caturdaśī reaches.

18:45 sunsetpradoṣa ends 20:14
18:2118:4519:0919:3319:5720:2120:45

89 of 89 minutes covered

Evening of Friday 5 September

Caturdaśī is absent from pradoṣa. Not taken.

18:44 sunsetpradoṣa ends 20:13
18:2018:4419:0819:3219:5620:2020:44

0 of 89 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 10:45 on Thu 4 Sep to 07:09 on Fri 5 Sep.

    1975-09-04T02:45:26Z → 1975-09-04T23:09:20Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:45–20:14 on the 4th, 18:44–20:13 on the 5th.

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

  3. 03

    Rule

    Caturdaśī must be present during pradoṣa. It covers 89 of 89 minutes on the 4th and 0 of 89 on the 5th.

    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 28789 s

  5. 05

    Ruling

    Aghora Caturdaśī, Baoding, 1975: Thursday 4 September.

    confidence: determinate

Say it like this

In Baoding, Aghora Caturdaśī 1975 falls on Thursday 4 September. Caturdaśī runs from 10:45 on Thu 4 Sep to 07:09 on Fri 5 Sep and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1975/aghora-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 4 Sep
Ahargaṇa, classicalDisc centre, no refractionThu 4 Sep
compat-drikpanchangComparison profileThu 4 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 4thCoveredSunset 5thCoveredRuled
Los Angeles19:45 → 16:0919:150 min19:140 min3 Sep
Chicago21:45 → 18:0919:200 min19:180 min3 Sep
Jersey City22:45 → 19:0919:240 min19:230 min3 Sep
Port of Spain22:45 → 19:0918:1456 min18:130 min4 Sep
London03:45 → 00:0919:4185 min19:390 min4 Sep
Durban04:45 → 01:0917:4299 min17:420 min4 Sep
Dubai06:45 → 03:0918:3591 min18:340 min4 Sep
Delhi08:15 → 04:3918:4091 min18:390 min4 Sep
Kolkata08:15 → 04:3917:5192 min17:500 min4 Sep
Singapore10:15 → 06:3918:3895 min18:370 min4 Sep
Sydney12:45 → 09:0917:38100 min17:390 min4 Sep
Suva14:45 → 11:0917:5998 min17:590 min4 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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