Ruling · Yama Tarpaṇa · 2002

Monday 11 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 271 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 Sunday 10 February

Caturdaśī is absent from aruṇodaya. Not taken.

05:28 aruṇodaya beginssunrise 07:16
05:0405:2805:5206:1606:4007:0407:28

0 of 108 minutes covered

Dawn of Monday 11 February

Taken. The only dawn Caturdaśī reaches.

05:28 aruṇodaya beginssunrise 07:15
05:0405:2805:5206:1606:4007:0407:28

107 of 107 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 11:48 on Sun 10 Feb to 13:36 on Mon 11 Feb.

    2002-02-10T03:47:30Z → 2002-02-11T05:36:07Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:28–07:16 on the 10th, 05:28–07:15 on the 11th.

    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 108 minutes on the 10th and 107 of 107 on the 11th.

    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 16277 s

  5. 05

    Ruling

    Yama Tarpaṇa, Baoding, 2002: Monday 11 February.

    confidence: determinate

Say it like this

In Baoding, Yama Tarpaṇa 2002 falls on Monday 11 February. Caturdaśī runs from 11:48 on Sun 10 Feb to 13:36 on Mon 11 Feb and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2002/yama-tarpana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 11 Feb
Ahargaṇa, classicalDisc centre, no refractionMon 11 Feb
compat-drikpanchangComparison profileMon 11 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 10thCoveredAruṇodaya 11thCoveredRuled
Los Angeles19:48 → 21:3604:57106 min04:570 min10 Feb
Chicago21:48 → 23:3605:04109 min05:030 min10 Feb
Jersey City22:48 → 00:3605:08108 min05:080 min10 Feb
Port of Spain23:48 → 01:3604:5098 min04:500 min10 Feb
London03:48 → 05:3605:30115 min05:288 min10 Feb
Durban05:48 → 07:3604:060 min04:0786 min11 Feb
Dubai07:48 → 09:3605:150 min05:14102 min11 Feb
Delhi09:18 → 11:0605:200 min05:20104 min11 Feb
Kolkata09:18 → 11:0604:300 min04:30102 min11 Feb
Singapore11:48 → 13:3605:410 min05:4195 min11 Feb
Sydney14:48 → 16:3605:010 min05:0284 min11 Feb
Suva15:48 → 17:3604:280 min04:2890 min11 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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