Ruling · Yama Tarpaṇa · 1982

Sunday 24 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 107 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 Saturday 23 January

Caturdaśī is absent from aruṇodaya. Not taken.

05:39 aruṇodaya beginssunrise 07:32
05:1505:3906:0306:2706:5107:1507:3908:03

0 of 113 minutes covered

Dawn of Sunday 24 January

Taken. The only dawn Caturdaśī reaches.

05:39 aruṇodaya beginssunrise 07:31
05:1505:3906:0306:2706:5107:1507:3908:03

112 of 112 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 09:19 on Sat 23 Jan to 11:21 on Sun 24 Jan.

    1982-01-23T01:19:14Z → 1982-01-24T03:20:35Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:39–07:32 on the 23rd, 05:39–07:31 on the 24th.

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

  3. 03

    Rule

    Caturdaśī must be present during aruṇodaya. It covers 0 of 113 minutes on the 23rd and 112 of 112 on the 24th.

    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 6431 s

  5. 05

    Ruling

    Yama Tarpaṇa, Baoding, 1982: Sunday 24 January.

    confidence: determinate

Say it like this

In Baoding, Yama Tarpaṇa 1982 falls on Sunday 24 January. Caturdaśī runs from 09:19 on Sat 23 Jan to 11:21 on Sun 24 Jan and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1982/yama-tarpana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 24 Jan
Ahargaṇa, classicalDisc centre, no refractionSun 24 Jan
compat-drikpanchangComparison profileSun 24 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 23rdCoveredAruṇodaya 24thCoveredRuled
Los Angeles17:19 → 19:2105:06110 min05:060 min23 Jan
Chicago19:19 → 21:2105:17115 min05:170 min23 Jan
Jersey City20:19 → 22:2105:21114 min05:200 min23 Jan
Port of Spain21:19 → 23:2104:5199 min04:510 min23 Jan
London01:19 → 03:2105:49123 min05:490 min23 Jan
Durban03:19 → 05:2103:5482 min03:5583 min24 Jan
Dubai05:19 → 07:2105:20105 min05:20105 min23 Jan
Delhi06:49 → 08:5105:2724 min05:27107 min24 Jan
Kolkata06:49 → 08:5104:340 min04:34104 min24 Jan
Singapore09:19 → 11:2105:390 min05:3996 min24 Jan
Sydney12:19 → 14:2104:470 min04:4880 min24 Jan
Suva13:19 → 15:2104:200 min04:2088 min24 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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