Ruling · Yama Tarpaṇa · 1916

Wednesday 2 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 48 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 2 February

Taken. The only dawn Caturdaśī reaches.

05:35 aruṇodaya beginssunrise 07:26
Caturdaśī begins 06:23:22
05:1105:3505:5906:2306:4707:1107:3507:59

62 of 110 minutes covered, the last 62

Dawn of Thursday 3 February

Caturdaśī is absent from aruṇodaya. Not taken.

05:34 aruṇodaya beginssunrise 07:25
05:1005:3405:5806:2206:4607:1007:3407:58

0 of 110 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 06:23 on Wed 2 Feb to 03:10 on Thu 3 Feb.

    1916-02-01T22:23:22Z → 1916-02-02T19:10:09Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:35–07:26 on the 2nd, 05:34–07:25 on the 3rd.

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

  3. 03

    Rule

    Caturdaśī must be present during aruṇodaya. It covers 62 of 110 minutes on the 2nd and 0 of 110 on the 3rd.

    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 2896 s

  5. 05

    Ruling

    Yama Tarpaṇa, Baoding, 1916: Wednesday 2 February.

    confidence: determinate

Say it like this

In Baoding, Yama Tarpaṇa 1916 falls on Wednesday 2 February. Caturdaśī runs from 06:23 on Wed 2 Feb to 03:10 on Thu 3 Feb and covers 62 of 110 minutes of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1916/yama-tarpana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 2 Feb
Ahargaṇa, classicalDisc centre, no refractionWed 2 Feb
compat-drikpanchangComparison profileWed 2 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 1stCoveredAruṇodaya 2ndCoveredRuled
Los Angeles14:23 → 11:1005:030 min05:03108 min2 Feb
Chicago16:23 → 13:1005:130 min05:12112 min2 Feb
Jersey City17:23 → 14:1005:160 min05:16111 min2 Feb
Port of Spain18:23 → 15:1004:510 min04:5199 min2 Feb
London22:23 → 19:1005:420 min05:41119 min2 Feb
Durban00:23 → 21:1004:000 min04:0184 min2 Feb
Dubai02:04 → 22:5104:590 min04:59104 min2 Feb
Delhi03:53 → 00:4005:250 min05:25105 min2 Feb
Kolkata03:53 → 00:4004:340 min04:33103 min2 Feb
Singapore05:23 → 02:1004:410 min04:4153 min2 Feb
Sydney08:23 → 05:1003:540 min03:540 min3 Feb
Suva10:23 → 07:1004:240 min04:240 min3 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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