Ruling · Yama Tarpaṇa · 1960

Wednesday 27 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 542 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 27 January

Taken. The only dawn Caturdaśī reaches.

05:38 aruṇodaya beginssunrise 07:30
05:1405:3806:0206:2606:5007:1407:3808:02

112 of 112 minutes covered

Dawn of Thursday 28 January

Caturdaśī is absent from aruṇodaya. Not taken.

05:38 aruṇodaya beginssunrise 07:29
05:1405:3806:0206:2606:5007:1407:3808:02

0 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 20:36 on Tue 26 Jan to 17:20 on Wed 27 Jan.

    1960-01-26T12:36:15Z → 1960-01-27T09:20:07Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:38–07:30 on the 27th, 05:38–07:29 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 112 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 32508 s

  5. 05

    Ruling

    Yama Tarpaṇa, Baoding, 1960: Wednesday 27 January.

    confidence: determinate

Say it like this

In Baoding, Yama Tarpaṇa 1960 falls on Wednesday 27 January. Caturdaśī runs from 20:36 on Tue 26 Jan to 17:20 on Wed 27 Jan and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1960/yama-tarpana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 27 Jan
Ahargaṇa, classicalDisc centre, no refractionWed 27 Jan
compat-drikpanchangComparison profileWed 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 Angeles04:36 → 01:2005:06109 min05:050 min26 Jan
Chicago06:36 → 03:2005:1634 min05:150 min26 Jan
Jersey City07:36 → 04:2005:200 min05:190 min26 Jan
Port of Spain08:36 → 05:2004:510 min04:5129 min27 Jan
London12:36 → 09:2005:470 min05:47121 min27 Jan
Durban14:36 → 11:2003:560 min03:5783 min27 Jan
Dubai16:36 → 13:2005:200 min05:19105 min27 Jan
Delhi18:06 → 14:5005:260 min05:26106 min27 Jan
Kolkata18:06 → 14:5004:340 min04:34104 min27 Jan
Singapore20:06 → 16:5005:100 min05:1096 min27 Jan
Sydney22:36 → 19:2003:490 min03:5081 min27 Jan
Suva00:36 → 21:2004:210 min04:2188 min27 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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