Ruling · Yama Tarpaṇa · 2052

Tuesday 30 January

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 147 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 Tuesday 30 January

Taken. The only dawn Caturdaśī reaches.

05:36 aruṇodaya beginssunrise 07:27
05:1205:3606:0006:2406:4807:1207:3608:00

111 of 111 minutes covered

Dawn of Wednesday 31 January

Caturdaśī is absent from aruṇodaya. Not taken.

05:35 aruṇodaya beginssunrise 07:26
05:1105:3505:5906:2306:4707:1107:3507:59

0 of 111 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 03:09 on Tue 30 Jan to 03:07 on Wed 31 Jan.

    2052-01-29T19:09:29Z → 2052-01-30T19:06:45Z

  2. 02

    Kāla

    Aruṇodaya is 2 muhūrtas before sunrise: 05:36–07:27 on the 30th, 05:35–07:26 on the 31st.

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

  3. 03

    Rule

    Caturdaśī must be present during aruṇodaya. It covers 111 of 111 minutes on the 30th and 0 of 111 on the 31st.

    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 8791 s

  5. 05

    Ruling

    Yama Tarpaṇa, Baoding, 2052: Tuesday 30 January.

    confidence: determinate

Say it like this

In Baoding, Yama Tarpaṇa 2052 falls on Tuesday 30 January. Caturdaśī runs from 03:09 on Tue 30 Jan to 03:07 on Wed 31 Jan and covers all of aruṇodaya that dawn.

ahargana.org/baoding/festivals/2052/yama-tarpana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 30 Jan
Ahargaṇa, classicalDisc centre, no refractionTue 30 Jan
compat-drikpanchangComparison profileTue 30 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 29thCoveredAruṇodaya 30thCoveredRuled
Los Angeles11:09 → 11:0705:040 min05:04108 min30 Jan
Chicago13:09 → 13:0705:140 min05:13113 min30 Jan
Jersey City14:09 → 14:0705:170 min05:17112 min30 Jan
Port of Spain15:09 → 15:0704:510 min04:5199 min30 Jan
London19:09 → 19:0705:440 min05:43120 min30 Jan
Durban21:09 → 21:0703:580 min03:5984 min30 Jan
Dubai23:09 → 23:0705:190 min05:18104 min30 Jan
Delhi00:39 → 00:3705:250 min05:25106 min30 Jan
Kolkata00:39 → 00:3704:340 min04:33103 min30 Jan
Singapore03:09 → 03:0705:400 min05:4196 min30 Jan
Sydney06:09 → 06:0704:520 min04:535 min31 Jan
Suva07:09 → 07:0704:230 min04:230 min31 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

About Ahargaṇa