Ruling · Aghora Caturdaśī · 2027

Monday 30 August

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 384 minutes.

Decide it for

UjjainDelhiKolkataSingaporeSydneyJersey City

23°11′ N 75°47′ E · Asia/Kolkata · GeoNames 1253914

The two evenings

One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.

Evening of Sunday 29 August

Caturdaśī is absent from pradoṣa. Not taken.

18:47 sunsetpradoṣa ends 20:18
18:2318:4719:1119:3519:5920:2320:47

0 of 91 minutes covered

Evening of Monday 30 August

Taken. The only evening Caturdaśī reaches.

18:47 sunsetpradoṣa ends 20:17
18:2318:4719:1119:3519:5920:2320:47

91 of 91 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 06:13 on Mon 30 Aug to 02:42 on Tue 31 Aug.

    2027-08-30T00:43:00Z → 2027-08-30T21:11:43Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:47–20:18 on the 29th, 18:47–20:17 on the 30th.

    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 91 minutes on the 29th and 91 of 91 on the 30th.

    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 23054 s

  5. 05

    Ruling

    Aghora Caturdaśī, Ujjain, 2027: Monday 30 August.

    confidence: determinate

Say it like this

In Ujjain, Aghora Caturdaśī 2027 falls on Monday 30 August. Caturdaśī runs from 06:13 on Mon 30 Aug to 02:42 on Tue 31 Aug and covers all of pradoṣa that evening.

ahargana.org/ujjain/festivals/2027/aghora-chaturdashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 30 Aug
Ahargaṇa, classicalDisc centre, no refractionMon 30 Aug
compat-drikpanchangComparison profileMon 30 Aug
No institution has a recorded ruling for Ujjain.

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 30thCoveredSunset 31stCoveredRuled
Los Angeles17:43 → 14:1219:210 min19:200 min29 Aug
Chicago19:43 → 16:1219:270 min19:260 min29 Aug
Jersey City20:43 → 17:1219:320 min19:300 min29 Aug
Port of Spain20:43 → 17:1218:170 min18:160 min29 Aug
London01:43 → 22:1219:5283 min19:490 min30 Aug
Durban02:43 → 23:1217:40100 min17:400 min30 Aug
Dubai04:43 → 01:1218:4091 min18:390 min30 Aug
Delhi06:13 → 02:4218:4590 min18:440 min30 Aug
Kolkata06:13 → 02:4217:5691 min17:550 min30 Aug
Singapore08:43 → 05:1219:0995 min19:090 min30 Aug
Sydney10:43 → 07:1217:35101 min17:360 min30 Aug
Suva12:43 → 09:1217:5898 min17:590 min30 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