Ruling · Yama Tarpaṇa · 2092

Wednesday 6 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 225 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 Wednesday 6 February

Taken. The only dawn Caturdaśī reaches.

05:31 aruṇodaya beginssunrise 07:20
05:0705:3105:5506:1906:4307:0707:31

109 of 109 minutes covered

Dawn of Thursday 7 February

Caturdaśī is absent from aruṇodaya. Not taken.

05:31 aruṇodaya beginssunrise 07:19
05:0705:3105:5506:1906:4307:0707:31

0 of 109 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 01:47 on Wed 6 Feb to 00:13 on Thu 7 Feb.

    2092-02-05T17:46:46Z → 2092-02-06T16:13:22Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:31–07:20 on the 6th, 05:31–07:19 on the 7th.

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

  3. 03

    Rule

    Caturdaśī must be present during aruṇodaya. It covers 109 of 109 minutes on the 6th and 0 of 109 on the 7th.

    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 13483 s

  5. 05

    Ruling

    Yama Tarpaṇa, Baoding, 2092: Wednesday 6 February.

    confidence: determinate

Say it like this

In Baoding, Yama Tarpaṇa 2092 falls on Wednesday 6 February. Caturdaśī runs from 01:47 on Wed 6 Feb to 00:13 on Thu 7 Feb and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2092/yama-tarpana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 6 Feb
Ahargaṇa, classicalDisc centre, no refractionWed 6 Feb
compat-drikpanchangComparison profileWed 6 Feb
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 5thCoveredAruṇodaya 6thCoveredRuled
Los Angeles09:47 → 08:1305:000 min05:00107 min6 Feb
Chicago11:47 → 10:1305:080 min05:08110 min6 Feb
Jersey City12:47 → 11:1305:130 min05:12110 min6 Feb
Port of Spain13:47 → 12:1304:510 min04:5198 min6 Feb
London17:47 → 16:1305:360 min05:35117 min6 Feb
Durban19:47 → 18:1304:040 min04:0485 min6 Feb
Dubai21:47 → 20:1305:170 min05:16103 min6 Feb
Delhi23:17 → 21:4305:230 min05:22104 min6 Feb
Kolkata23:17 → 21:4304:320 min04:32102 min6 Feb
Singapore01:47 → 00:1305:410 min05:4196 min6 Feb
Sydney04:47 → 03:1304:580 min04:5883 min6 Feb
Suva05:47 → 04:1304:260 min04:269 min6 Feb
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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