Ruling · Yama Dīpadāna · 1949

Wednesday 19 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 92 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 19 October

Taken. The only evening Trayodaśī reaches.

17:35 sunsetpradoṣa ends 19:18
17:1117:3517:5918:2318:4719:1119:35

104 of 104 minutes covered

Evening of Thursday 20 October

Trayodaśī is absent from pradoṣa. Not taken.

17:33 sunsetpradoṣa ends 19:17
17:0917:3317:5718:2118:4519:0919:33

0 of 104 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 16:03 on Wed 19 Oct to 12:44 on Thu 20 Oct.

    1949-10-19T08:03:02Z → 1949-10-20T04:43:39Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:35–19:18 on the 19th, 17:33–19:17 on the 20th.

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

  3. 03

    Rule

    Trayodaśī must be present during pradoṣa. It covers 104 of 104 minutes on the 19th and 0 of 104 on the 20th.

    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 5510 s

  5. 05

    Ruling

    Yama Dīpadāna, Baoding, 1949: Wednesday 19 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dīpadāna 1949 falls on Wednesday 19 October. Trayodaśī runs from 16:03 on Wed 19 Oct to 12:44 on Thu 20 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1949/yama-dipadana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 19 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 19 Oct
compat-drikpanchangComparison profileWed 19 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 19thCoveredSunset 20thCoveredRuled
Los Angeles00:03 → 20:4417:14102 min17:130 min19 Oct
Chicago02:03 → 22:4417:03105 min17:020 min19 Oct
Jersey City03:03 → 23:4417:10104 min17:090 min19 Oct
Port of Spain04:03 → 00:4417:4797 min17:460 min19 Oct
London09:03 → 05:4417:59108 min17:570 min19 Oct
Durban10:03 → 06:4418:0889 min18:090 min19 Oct
Dubai12:03 → 08:4417:48100 min17:480 min19 Oct
Delhi13:33 → 10:1417:48101 min17:470 min19 Oct
Kolkata13:33 → 10:1417:08100 min17:070 min19 Oct
Singapore15:33 → 12:1418:2295 min18:220 min19 Oct
Sydney18:03 → 14:4418:1188 min18:120 min19 Oct
Suva20:03 → 16:4418:080 min18:080 min19 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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