Ruling · Yama Tarpaṇa · 1967

Wednesday 8 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 561 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 Tuesday 7 February

Caturdaśī is absent from aruṇodaya. Not taken.

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

0 of 109 minutes covered

Dawn of Wednesday 8 February

Taken. The only dawn Caturdaśī reaches.

05:30 aruṇodaya beginssunrise 07:19
05:0605:3005:5406:1806:4207:0607:30

109 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 16:41 on Tue 7 Feb to 17:30 on Wed 8 Feb.

    1967-02-07T08:40:56Z → 1967-02-08T09:30:16Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:31–07:20 on the 7th, 05:30–07:19 on the 8th.

    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 109 minutes on the 7th and 109 of 109 on the 8th.

    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 33654 s

  5. 05

    Ruling

    Yama Tarpaṇa, Baoding, 1967: Wednesday 8 February.

    confidence: determinate

Say it like this

In Baoding, Yama Tarpaṇa 1967 falls on Wednesday 8 February. Caturdaśī runs from 16:41 on Tue 7 Feb to 17:30 on Wed 8 Feb and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1967/yama-tarpana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 8 Feb
Ahargaṇa, classicalDisc centre, no refractionWed 8 Feb
compat-drikpanchangComparison profileWed 8 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 7thCoveredAruṇodaya 8thCoveredRuled
Los Angeles00:41 → 01:3005:00106 min04:590 min7 Feb
Chicago02:41 → 03:3005:07110 min05:060 min7 Feb
Jersey City03:41 → 04:3005:11110 min05:110 min7 Feb
Port of Spain04:41 → 05:3004:5198 min04:5040 min7 Feb
London08:41 → 09:3005:340 min05:33116 min8 Feb
Durban10:41 → 11:3004:040 min04:0585 min8 Feb
Dubai12:41 → 13:3005:160 min05:16103 min8 Feb
Delhi14:11 → 15:0005:220 min05:22104 min8 Feb
Kolkata14:11 → 15:0004:320 min04:31102 min8 Feb
Singapore16:11 → 17:0005:110 min05:1196 min8 Feb
Sydney18:41 → 19:3003:590 min03:5984 min8 Feb
Suva20:41 → 21:3004:260 min04:2790 min8 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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