Ruling · Yama Tarpaṇa · 2082

Tuesday 27 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 104 minutes.

Decide it for

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

The two dawns

One ghaṭī is 24 minutes. Aruṇodaya is 2 muhūrtas before sunrise.

Dawn of Tuesday 27 January

Taken. The only dawn Caturdaśī reaches.

05:37 aruṇodaya beginssunrise 07:29
05:1305:3706:0106:2506:4907:1307:3708:01

112 of 112 minutes covered

Dawn of Wednesday 28 January

Caturdaśī is absent from aruṇodaya. Not taken.

05:37 aruṇodaya beginssunrise 07:28
05:1305:3706:0106:2506:4907:1307:3708:01

0 of 111 minutes covered

Caturdaśī presentAruṇodaya, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Caturdaśī runs from 03:26 on Tue 27 Jan to 03:52 on Wed 28 Jan.

    2082-01-26T19:25:44Z → 2082-01-27T19:52:17Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:37–07:29 on the 27th, 05:37–07:28 on the 28th.

    arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Caturdaśī must be present during aruṇodaya. It covers 112 of 112 minutes on the 27th and 0 of 111 on the 28th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

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

    priority: unstated → only-day · margin 6269 s

  5. 05

    Ruling

    Yama Tarpaṇa, Baoding, 2082: Tuesday 27 January.

    confidence: determinate

Say it like this

In Baoding, Yama Tarpaṇa 2082 falls on Tuesday 27 January. Caturdaśī runs from 03:26 on Tue 27 Jan to 03:52 on Wed 28 Jan and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2082/yama-tarpana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 27 Jan
Ahargaṇa, classicalDisc centre, no refractionTue 27 Jan
compat-drikpanchangComparison profileTue 27 Jan
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/yama-tarpana · ruleset 2026.3-draft

Month
Pauṣa, amānta
Pakṣa · aṅga
Kṛṣṇa · Caturdaśī
Kāla
Aruṇodaya
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 105

“K 14 Yama tarpana (covering a period of 4 ghatikas before sunrise)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceCaturdaśīAruṇodaya 26thCoveredAruṇodaya 27thCoveredRuled
Los Angeles11:26 → 11:5205:050 min05:05109 min27 Jan
Chicago13:26 → 13:5205:150 min05:14113 min27 Jan
Jersey City14:26 → 14:5205:190 min05:18113 min27 Jan
Port of Spain15:26 → 15:5204:510 min04:5199 min27 Jan
London19:26 → 19:5205:460 min05:45121 min27 Jan
Durban21:26 → 21:5203:570 min03:5883 min27 Jan
Dubai23:26 → 23:5205:190 min05:19105 min27 Jan
Delhi00:56 → 01:2205:260 min05:26106 min27 Jan
Kolkata00:56 → 01:2204:340 min04:34104 min27 Jan
Singapore03:26 → 03:5205:400 min05:4096 min27 Jan
Sydney06:26 → 06:5204:500 min04:510 min28 Jan
Suva07:26 → 07:5204:220 min04:220 min28 Jan
Profile · tradition
pac-rp@2026.1 · smarta
Rule
yama-tarpana@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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