Ruling · Mahālaya Amāvāsyā (Sarvapitṛ Amāvāsyā) · 2002

Sunday 6 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 223 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two afternoons

One ghaṭī is 24 minutes. Aparāhṇa is 10th to 12th of 15 day muhūrtas.

Afternoon of Saturday 5 October

Amāvasyā is absent from aparāhṇa. Not taken.

13:16 aparāhṇa beginsaparāhṇa ends 15:36
12:5213:1613:4014:0414:2814:5215:1615:4016:04

0 of 140 minutes covered

Afternoon of Sunday 6 October

Taken. The only afternoon Amāvasyā reaches.

13:16 aparāhṇa beginsaparāhṇa ends 15:35
12:5213:1613:4014:0414:2814:5215:1615:4016:04

139 of 139 minutes covered

Amāvasyā presentAparāhṇa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Amāvasyā runs from 23:11 on Sat 5 Oct to 19:18 on Sun 6 Oct.

    2002-10-05T15:10:41Z → 2002-10-06T11:17:34Z

  2. 02

    Kāla

    Aparāhṇa is 10th to 12th of 15 day muhūrtas: 13:16–15:36 on the 5th, 13:16–15:35 on the 6th.

    aparahna: day-muhurta-10-12 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Amāvasyā must be present during aparāhṇa. It covers 0 of 140 minutes on the 5th and 139 of 139 on the 6th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Only one afternoon qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 13370 s

  5. 05

    Ruling

    Mahālaya Amāvāsyā, Baoding, 2002: Sunday 6 October.

    confidence: determinate

Say it like this

In Baoding, Mahālaya Amāvāsyā 2002 falls on Sunday 6 October. Amāvasyā runs from 23:11 on Sat 5 Oct to 19:18 on Sun 6 Oct and covers all of aparāhṇa that afternoon.

ahargana.org/baoding/festivals/2002/mahalaya-amavasya · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 6 Oct
Ahargaṇa, classicalDisc centre, no refractionSun 6 Oct
compat-drikpanchangComparison profileSun 6 Oct
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/mahalaya-amavasya · ruleset 2026.3-draft

Month
Bhādrapada, amānta
Pakṣa · aṅga
Kṛṣṇa · Amāvasyā
Kāla
Aparāhṇa
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 103

“K 30 Mahalaya amavasya (aparahnavyapini)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103. The note on p. 106 gives the first day in a decreasing tithimāna and the second in an increasing one, when amāvāsyā covers the whole of aparāhṇa on both days; tithimāna is not computed.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAmāvasyāAparāhṇa 5thCoveredAparāhṇa 6thCoveredRuled
Los Angeles08:11 → 04:1813:51140 min13:510 min5 Oct
Chicago10:11 → 06:1813:48139 min13:470 min5 Oct
Jersey City11:11 → 07:1813:54139 min13:530 min5 Oct
Port of Spain11:11 → 07:1813:06144 min13:060 min5 Oct
London16:11 → 12:1813:572 min13:560 min5 Oct
Durban17:11 → 13:1812:590 min12:5918 min6 Oct
Dubai19:11 → 15:1813:180 min13:18120 min6 Oct
Delhi20:41 → 16:4813:200 min13:20141 min6 Oct
Kolkata20:41 → 16:4812:360 min12:36142 min6 Oct
Singapore23:11 → 19:1814:060 min14:05145 min6 Oct
Sydney01:11 → 21:1812:590 min12:59151 min6 Oct
Suva03:11 → 23:1813:090 min13:09148 min6 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
mahalaya-amavasya@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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