Ruling · Yama Tarpaṇa · 1952

Saturday 26 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 161 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 Friday 25 January

Caturdaśī is absent from aruṇodaya. Not taken.

05:39 aruṇodaya beginssunrise 07:31
05:1505:3906:0306:2706:5107:1507:3908:03

0 of 112 minutes covered

Dawn of Saturday 26 January

Taken. The only dawn Caturdaśī reaches.

05:39 aruṇodaya beginssunrise 07:31
05:1505:3906:0306:2706:5107:1507:3908:03

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 13:54 on Fri 25 Jan to 10:12 on Sat 26 Jan.

    1952-01-25T05:54:22Z → 1952-01-26T02:12:04Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:39–07:31 on the 25th, 05:39–07:31 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 9684 s

  5. 05

    Ruling

    Yama Tarpaṇa, Baoding, 1952: Saturday 26 January.

    confidence: determinate

Say it like this

In Baoding, Yama Tarpaṇa 1952 falls on Saturday 26 January. Caturdaśī runs from 13:54 on Fri 25 Jan to 10:12 on Sat 26 Jan and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1952/yama-tarpana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 26 Jan
Ahargaṇa, classicalDisc centre, no refractionSat 26 Jan
compat-drikpanchangComparison profileSat 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 Angeles21:54 → 18:1205:06109 min05:060 min25 Jan
Chicago23:54 → 20:1205:16114 min05:160 min25 Jan
Jersey City00:54 → 21:1205:20113 min05:200 min25 Jan
Port of Spain01:54 → 22:1204:5199 min04:510 min25 Jan
London05:54 → 02:1205:48116 min05:480 min25 Jan
Durban07:54 → 04:1203:550 min03:5616 min26 Jan
Dubai09:54 → 06:1205:200 min05:2052 min26 Jan
Delhi11:24 → 07:4205:270 min05:26107 min26 Jan
Kolkata11:24 → 07:4204:340 min04:34104 min26 Jan
Singapore13:24 → 09:4205:100 min05:1096 min26 Jan
Sydney15:54 → 12:1203:480 min03:4981 min26 Jan
Suva17:54 → 14:1204:200 min04:2188 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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