Ruling · Yama Dīpadāna · 2055

Monday 18 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 430 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two evenings

One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.

Evening of Sunday 17 October

Trayodaśī is absent from pradoṣa. Not taken.

17:37 sunsetpradoṣa ends 19:20
17:1317:3718:0118:2518:4919:1319:37

0 of 103 minutes covered

Evening of Monday 18 October

Taken. The only evening Trayodaśī reaches.

17:36 sunsetpradoṣa ends 19:19
17:1217:3618:0018:2418:4819:1219:36

103 of 103 minutes covered

Trayodaśī presentPradoṣa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Trayodaśī runs from 05:58 on Mon 18 Oct to 02:29 on Tue 19 Oct.

    2055-10-17T21:58:12Z → 2055-10-18T18:29:24Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:37–19:20 on the 17th, 17:36–19:19 on the 18th.

    pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Trayodaśī must be present during pradoṣa. It covers 0 of 103 minutes on the 17th and 103 of 103 on the 18th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Only one evening qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 25806 s

  5. 05

    Ruling

    Yama Dīpadāna, Baoding, 2055: Monday 18 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dīpadāna 2055 falls on Monday 18 October. Trayodaśī runs from 05:58 on Mon 18 Oct to 02:29 on Tue 19 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2055/yama-dipadana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 18 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 18 Oct
compat-drikpanchangComparison profileMon 18 Oct
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-dipadana · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Kṛṣṇa · Trayodaśī
Kāla
Pradoṣa
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 104

“K 13 Yama dipadana (pradosa).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceTrayodaśīSunset 17thCoveredSunset 18thCoveredRuled
Los Angeles14:58 → 11:2918:16102 min18:150 min17 Oct
Chicago16:58 → 13:2918:06104 min18:040 min17 Oct
Jersey City17:58 → 14:2918:13104 min18:110 min17 Oct
Port of Spain17:58 → 14:2917:4786 min17:470 min17 Oct
London22:58 → 19:2918:030 min18:0189 min18 Oct
Durban23:58 → 20:2918:070 min18:0789 min18 Oct
Dubai01:58 → 22:2917:500 min17:49100 min18 Oct
Delhi03:28 → 23:5917:490 min17:48101 min18 Oct
Kolkata03:28 → 23:5917:100 min17:0999 min18 Oct
Singapore05:58 → 02:2918:520 min18:5295 min18 Oct
Sydney08:58 → 05:2919:100 min19:1088 min18 Oct
Suva09:58 → 06:2918:070 min18:0892 min18 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
yama-dipadana@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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