Ruling · Yama Dīpadāna · 1922

Wednesday 18 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 565 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 Wednesday 18 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

Evening of Thursday 19 October

Trayodaśī is absent from pradoṣa. Not taken.

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

0 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 08:12 on Wed 18 Oct to 04:49 on Thu 19 Oct.

    1922-10-18T00:11:52Z → 1922-10-18T20:48:58Z

  2. 02

    Kāla

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

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

  3. 03

    Rule

    Trayodaśī must be present during pradoṣa. It covers 103 of 103 minutes on the 18th and 0 of 103 on the 19th.

    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 33904 s

  5. 05

    Ruling

    Yama Dīpadāna, Baoding, 1922: Wednesday 18 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dīpadāna 1922 falls on Wednesday 18 October. Trayodaśī runs from 08:12 on Wed 18 Oct to 04:49 on Thu 19 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1922/yama-dipadana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 18 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 18 Oct
compat-drikpanchangComparison profileWed 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 18thCoveredSunset 19thCoveredRuled
Los Angeles16:12 → 12:4917:160 min17:140 min17 Oct
Chicago18:12 → 14:4917:050 min17:040 min17 Oct
Jersey City19:12 → 15:4917:120 min17:110 min17 Oct
Port of Spain20:12 → 16:4917:470 min17:470 min17 Oct
London00:12 → 20:4917:02108 min17:000 min18 Oct
Durban02:12 → 22:4918:0789 min18:080 min18 Oct
Dubai04:12 → 00:4917:50100 min17:490 min18 Oct
Delhi05:42 → 02:1917:49101 min17:480 min18 Oct
Kolkata05:42 → 02:1917:0999 min17:090 min18 Oct
Singapore07:12 → 03:4917:5295 min17:520 min18 Oct
Sydney10:12 → 06:4918:1088 min18:110 min18 Oct
Suva12:12 → 08:4918:0792 min18:080 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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