Ruling · Yama Tarpaṇa · 2007

Thursday 18 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 365 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 17 January

Caturdaśī is absent from aruṇodaya. Not taken.

05:41 aruṇodaya beginssunrise 07:35
05:1705:4106:0506:2906:5307:1707:4108:05

0 of 114 minutes covered

Dawn of Thursday 18 January

Taken. The only dawn Caturdaśī reaches.

05:41 aruṇodaya beginssunrise 07:35
05:1705:4106:0506:2906:5307:1707:4108:05

114 of 114 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 14:46 on Wed 17 Jan to 13:39 on Thu 18 Jan.

    2007-01-17T06:46:17Z → 2007-01-18T05:39:17Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:41–07:35 on the 17th, 05:41–07:35 on the 18th.

    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 114 minutes on the 17th and 114 of 114 on the 18th.

    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 21880 s

  5. 05

    Ruling

    Yama Tarpaṇa, Baoding, 2007: Thursday 18 January.

    confidence: determinate

Say it like this

In Baoding, Yama Tarpaṇa 2007 falls on Thursday 18 January. Caturdaśī runs from 14:46 on Wed 17 Jan to 13:39 on Thu 18 Jan and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2007/yama-tarpana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 18 Jan
Ahargaṇa, classicalDisc centre, no refractionThu 18 Jan
compat-drikpanchangComparison profileThu 18 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 17thCoveredAruṇodaya 18thCoveredRuled
Los Angeles22:46 → 21:3905:07111 min05:070 min17 Jan
Chicago00:46 → 23:3905:19116 min05:190 min17 Jan
Jersey City01:46 → 00:3905:23115 min05:220 min17 Jan
Port of Spain02:46 → 01:3904:5099 min04:500 min17 Jan
London06:46 → 05:3905:5472 min05:530 min17 Jan
Durban08:46 → 07:3903:500 min03:5182 min18 Jan
Dubai10:46 → 09:3905:200 min05:20106 min18 Jan
Delhi12:16 → 11:0905:270 min05:27108 min18 Jan
Kolkata12:16 → 11:0904:340 min04:34105 min18 Jan
Singapore14:46 → 13:3905:370 min05:3896 min18 Jan
Sydney17:46 → 16:3904:420 min04:4379 min18 Jan
Suva18:46 → 17:3904:160 min04:1787 min18 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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