Ruling · Yama Dīpadāna · 2017

Tuesday 17 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 439 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 Monday 16 October

Trayodaśī is absent from pradoṣa. Not taken.

17:38 sunsetpradoṣa ends 19:21
17:1417:3818:0218:2618:5019:1419:38

0 of 103 minutes covered

Evening of Tuesday 17 October

Taken. The only evening Trayodaśī reaches.

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

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 02:57 on Tue 17 Oct to 02:39 on Wed 18 Oct.

    2017-10-16T18:56:47Z → 2017-10-17T18:38:56Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:38–19:21 on the 16th, 17:37–19:20 on the 17th.

    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 16th and 103 of 103 on the 17th.

    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 26330 s

  5. 05

    Ruling

    Yama Dīpadāna, Baoding, 2017: Tuesday 17 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dīpadāna 2017 falls on Tuesday 17 October. Trayodaśī runs from 02:57 on Tue 17 Oct to 02:39 on Wed 18 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2017/yama-dipadana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 17 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 17 Oct
compat-drikpanchangComparison profileTue 17 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 16thCoveredSunset 17thCoveredRuled
Los Angeles11:57 → 11:3918:17102 min18:160 min16 Oct
Chicago13:57 → 13:3918:07104 min18:050 min16 Oct
Jersey City14:57 → 14:3918:14104 min18:120 min16 Oct
Port of Spain14:57 → 14:3917:4897 min17:470 min16 Oct
London19:57 → 19:3918:040 min18:0297 min17 Oct
Durban20:57 → 20:3918:060 min18:0789 min17 Oct
Dubai22:57 → 22:3917:510 min17:50100 min17 Oct
Delhi00:27 → 00:0917:500 min17:49101 min17 Oct
Kolkata00:27 → 00:0917:100 min17:0999 min17 Oct
Singapore02:57 → 02:3918:520 min18:5295 min17 Oct
Sydney05:57 → 05:3919:090 min19:1088 min17 Oct
Suva06:57 → 06:3918:070 min18:0792 min17 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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