Ruling · Yama Tarpaṇa · 1902

Friday 7 February

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 486 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 7 February

Taken. The only dawn Caturdaśī reaches.

05:32 aruṇodaya beginssunrise 07:20
05:0805:3205:5606:2006:4407:0807:32

109 of 109 minutes covered

Dawn of Saturday 8 February

Caturdaśī is absent from aruṇodaya. Not taken.

05:31 aruṇodaya beginssunrise 07:19
05:0705:3105:5506:1906:4307:0707:31

0 of 109 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 20:54 on Thu 6 Feb to 21:25 on Fri 7 Feb.

    1902-02-06T12:53:52Z → 1902-02-07T13:24:34Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:32–07:20 on the 7th, 05:31–07:19 on the 8th.

    arunodaya: prev-night-muhurta-14-15 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Caturdaśī must be present during aruṇodaya. It covers 109 of 109 minutes on the 7th and 0 of 109 on the 8th.

    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 29173 s

  5. 05

    Ruling

    Yama Tarpaṇa, Baoding, 1902: Friday 7 February.

    confidence: determinate

Say it like this

In Baoding, Yama Tarpaṇa 1902 falls on Friday 7 February. Caturdaśī runs from 20:54 on Thu 6 Feb to 21:25 on Fri 7 Feb and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/1902/yama-tarpana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 7 Feb
Ahargaṇa, classicalDisc centre, no refractionFri 7 Feb
compat-drikpanchangComparison profileFri 7 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 6thCoveredAruṇodaya 7thCoveredRuled
Los Angeles04:54 → 05:2505:01107 min05:0025 min6 Feb
Chicago06:54 → 07:2505:095 min05:08110 min7 Feb
Jersey City07:54 → 08:2505:130 min05:12110 min7 Feb
Port of Spain08:54 → 09:2504:510 min04:5198 min7 Feb
London12:54 → 13:2505:360 min05:35117 min7 Feb
Durban14:24 → 14:5503:340 min03:3485 min7 Feb
Dubai16:35 → 17:0604:580 min04:57103 min7 Feb
Delhi18:15 → 18:4605:140 min05:13104 min7 Feb
Kolkata18:15 → 18:4604:230 min04:23102 min7 Feb
Singapore19:49 → 20:2004:360 min04:3796 min7 Feb
Sydney22:54 → 23:2503:580 min03:5983 min7 Feb
Suva00:49 → 01:2004:210 min04:2289 min7 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

About Ahargaṇa