Ruling · Yama Tarpaṇa · 1936

Thursday 23 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 596 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 22 January

Caturdaśī is absent from aruṇodaya. Not taken.

05:40 aruṇodaya beginssunrise 07:33
05:1605:4006:0406:2806:5207:1607:4008:04

0 of 113 minutes covered

Dawn of Thursday 23 January

Taken. The only dawn Caturdaśī reaches.

05:40 aruṇodaya beginssunrise 07:33
05:1605:4006:0406:2806:5207:1607:4008:04

113 of 113 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 19:07 on Wed 22 Jan to 17:29 on Thu 23 Jan.

    1936-01-22T11:07:19Z → 1936-01-23T09:28:59Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:40–07:33 on the 22nd, 05:40–07:33 on the 23rd.

    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 22nd and 113 of 113 on the 23rd.

    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 35778 s

  5. 05

    Ruling

    Yama Tarpaṇa, Baoding, 1936: Thursday 23 January.

    confidence: determinate

Say it like this

In Baoding, Yama Tarpaṇa 1936 falls on Thursday 23 January. Caturdaśī runs from 19:07 on Wed 22 Jan to 17:29 on Thu 23 Jan and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1936/yama-tarpana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 23 Jan
Ahargaṇa, classicalDisc centre, no refractionThu 23 Jan
compat-drikpanchangComparison profileThu 23 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 22ndCoveredAruṇodaya 23rdCoveredRuled
Los Angeles03:07 → 01:2905:07110 min05:070 min22 Jan
Chicago05:07 → 03:2905:18115 min05:180 min22 Jan
Jersey City06:07 → 04:2905:2268 min05:210 min22 Jan
Port of Spain07:07 → 05:2904:500 min04:5138 min23 Jan
London11:07 → 09:2905:510 min05:50123 min23 Jan
Durban13:07 → 11:2903:530 min03:5482 min23 Jan
Dubai15:07 → 13:2905:200 min05:20105 min23 Jan
Delhi16:37 → 14:5905:270 min05:27107 min23 Jan
Kolkata16:37 → 14:5904:350 min04:35104 min23 Jan
Singapore18:27 → 16:4904:590 min04:5996 min23 Jan
Sydney21:07 → 19:2903:460 min03:4780 min23 Jan
Suva23:07 → 21:2904:190 min04:1988 min23 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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