Ruling · Yama Tarpaṇa · 2000

Friday 4 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 591 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 Thursday 3 February

Caturdaśī is absent from aruṇodaya. Not taken.

05:34 aruṇodaya beginssunrise 07:24
05:1005:3405:5806:2206:4607:1007:34

0 of 110 minutes covered

Dawn of Friday 4 February

Taken. The only dawn Caturdaśī reaches.

05:33 aruṇodaya beginssunrise 07:23
05:0905:3305:5706:2106:4507:0907:33

110 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 17:14 on Thu 3 Feb to 19:21 on Fri 4 Feb.

    2000-02-03T09:14:23Z → 2000-02-04T11:21:12Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:34–07:24 on the 3rd, 05:33–07:23 on the 4th.

    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 110 minutes on the 3rd and 110 of 110 on the 4th.

    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 35432 s

  5. 05

    Ruling

    Yama Tarpaṇa, Baoding, 2000: Friday 4 February.

    confidence: determinate

Say it like this

In Baoding, Yama Tarpaṇa 2000 falls on Friday 4 February. Caturdaśī runs from 17:14 on Thu 3 Feb to 19:21 on Fri 4 Feb and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2000/yama-tarpana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 4 Feb
Ahargaṇa, classicalDisc centre, no refractionFri 4 Feb
compat-drikpanchangComparison profileFri 4 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 3rdCoveredAruṇodaya 4thCoveredRuled
Los Angeles01:14 → 03:2105:02107 min05:010 min3 Feb
Chicago03:14 → 05:2105:10111 min05:1012 min3 Feb
Jersey City04:14 → 06:2105:14111 min05:1467 min3 Feb
Port of Spain05:14 → 07:2104:5175 min04:5199 min4 Feb
London09:14 → 11:2105:390 min05:38118 min4 Feb
Durban11:14 → 13:2104:020 min04:0285 min4 Feb
Dubai13:14 → 15:2105:170 min05:17104 min4 Feb
Delhi14:44 → 16:5105:240 min05:23105 min4 Feb
Kolkata14:44 → 16:5104:330 min04:32103 min4 Feb
Singapore17:14 → 19:2105:410 min05:4196 min4 Feb
Sydney20:14 → 22:2104:560 min04:5683 min4 Feb
Suva22:14 → 00:2105:250 min05:2589 min4 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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