Ruling · Aghora Caturdaśī · 1964

Friday 4 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 130 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 Friday 4 September

Taken. The only evening Caturdaśī reaches.

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

89 of 89 minutes covered

Evening of Saturday 5 September

Caturdaśī is absent from pradoṣa. Not taken.

18:43 sunsetpradoṣa ends 20:12
18:1918:4319:0719:3119:5520:1920:43

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 16:35 on Fri 4 Sep to 14:25 on Sat 5 Sep.

    1964-09-04T08:34:42Z → 1964-09-05T06:25:10Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:44–20:13 on the 4th, 18:43–20:12 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 7770 s

  5. 05

    Ruling

    Aghora Caturdaśī, Baoding, 1964: Friday 4 September.

    confidence: determinate

Say it like this

In Baoding, Aghora Caturdaśī 1964 falls on Friday 4 September. Caturdaśī runs from 16:35 on Fri 4 Sep to 14:25 on Sat 5 Sep and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1964/aghora-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 4 Sep
Ahargaṇa, classicalDisc centre, no refractionFri 4 Sep
compat-drikpanchangComparison profileFri 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 Angeles01:35 → 23:2519:1490 min19:130 min4 Sep
Chicago03:35 → 01:2519:1888 min19:170 min4 Sep
Jersey City04:35 → 02:2519:2389 min19:220 min4 Sep
Port of Spain04:35 → 02:2518:1394 min18:130 min4 Sep
London09:35 → 07:2519:4085 min19:380 min4 Sep
Durban10:35 → 08:2517:4299 min17:430 min4 Sep
Dubai12:35 → 10:2518:3492 min18:330 min4 Sep
Delhi14:05 → 11:5518:3991 min18:380 min4 Sep
Kolkata14:05 → 11:5517:5192 min17:500 min4 Sep
Singapore16:05 → 13:5518:3795 min18:370 min4 Sep
Sydney18:35 → 16:2517:3944 min17:390 min4 Sep
Suva20:35 → 18:2517:590 min17:5926 min5 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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