Ruling · Yama Tarpaṇa · 2074

Friday 26 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 489 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 Thursday 25 January

Caturdaśī is absent from aruṇodaya. Not taken.

05:38 aruṇodaya beginssunrise 07:30
05:1405:3806:0206:2606:5007:1407:3808:02

0 of 112 minutes covered

Dawn of Friday 26 January

Taken. The only dawn Caturdaśī reaches.

05:38 aruṇodaya beginssunrise 07:30
05:1405:3806:0206:2606:5007:1407:3808:02

112 of 112 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 17:04 on Thu 25 Jan to 15:39 on Fri 26 Jan.

    2074-01-25T09:04:03Z → 2074-01-26T07:38:41Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:38–07:30 on the 25th, 05:38–07:30 on the 26th.

    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 112 minutes on the 25th and 112 of 112 on the 26th.

    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 29349 s

  5. 05

    Ruling

    Yama Tarpaṇa, Baoding, 2074: Friday 26 January.

    confidence: determinate

Say it like this

In Baoding, Yama Tarpaṇa 2074 falls on Friday 26 January. Caturdaśī runs from 17:04 on Thu 25 Jan to 15:39 on Fri 26 Jan and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2074/yama-tarpana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 26 Jan
Ahargaṇa, classicalDisc centre, no refractionFri 26 Jan
compat-drikpanchangComparison profileFri 26 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 25thCoveredAruṇodaya 26thCoveredRuled
Los Angeles01:04 → 23:3905:05109 min05:050 min25 Jan
Chicago03:04 → 01:3905:16114 min05:150 min25 Jan
Jersey City04:04 → 02:3905:19113 min05:190 min25 Jan
Port of Spain05:04 → 03:3904:5186 min04:510 min25 Jan
London09:04 → 07:3905:470 min05:46113 min26 Jan
Durban11:04 → 09:3903:560 min03:5783 min26 Jan
Dubai13:04 → 11:3905:190 min05:19105 min26 Jan
Delhi14:34 → 13:0905:260 min05:26106 min26 Jan
Kolkata14:34 → 13:0904:340 min04:34104 min26 Jan
Singapore17:04 → 15:3905:400 min05:4096 min26 Jan
Sydney20:04 → 18:3904:490 min04:5081 min26 Jan
Suva21:04 → 19:3904:210 min04:2288 min26 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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