Ruling · Yama Dīpadāna · 1941

Saturday 18 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 561 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 Friday 17 October

Trayodaśī is absent from pradoṣa. Not taken.

18:38 sunsetpradoṣa ends 20:21
18:1418:3819:0219:2619:5020:1420:38

0 of 103 minutes covered

Evening of Saturday 18 October

Taken. The only evening Trayodaśī reaches.

18:36 sunsetpradoṣa ends 20:20
18:1218:3619:0019:2419:4820:1220:36

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 08:06 on Sat 18 Oct to 05:41 on Sun 19 Oct.

    1941-10-17T23:06:18Z → 1941-10-18T20:40:39Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 18:38–20:21 on the 17th, 18:36–20:20 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 33660 s

  5. 05

    Ruling

    Yama Dīpadāna, Baoding, 1941: Saturday 18 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dīpadāna 1941 falls on Saturday 18 October. Trayodaśī runs from 08:06 on Sat 18 Oct to 05:41 on Sun 19 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1941/yama-dipadana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 18 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 18 Oct
compat-drikpanchangComparison profileSat 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 Angeles15:06 → 12:4117:16102 min17:150 min17 Oct
Chicago17:06 → 14:4117:06104 min17:050 min17 Oct
Jersey City18:06 → 15:4117:1351 min17:120 min17 Oct
Port of Spain19:06 → 16:4117:4818 min17:470 min17 Oct
London00:06 → 21:4118:040 min18:02108 min18 Oct
Durban01:06 → 22:4118:060 min18:0789 min18 Oct
Dubai03:06 → 00:4117:500 min17:49100 min18 Oct
Delhi05:36 → 03:1118:500 min18:49101 min18 Oct
Kolkata05:36 → 03:1118:100 min18:0999 min18 Oct
Singapore06:36 → 04:1118:220 min18:2295 min18 Oct
Sydney09:06 → 06:4118:090 min18:1088 min18 Oct
Suva11:06 → 08:4118:070 min18:0792 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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