Ruling · Yama Dīpadāna · 1925

Thursday 15 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 328 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 14 October

Trayodaśī is absent from pradoṣa. Not taken.

17:42 sunsetpradoṣa ends 19:24
17:1817:4218:0618:3018:5419:1819:42

0 of 102 minutes covered

Evening of Thursday 15 October

Taken. The only evening Trayodaśī reaches.

17:41 sunsetpradoṣa ends 19:23
17:1717:4118:0518:2918:5319:1719:41

102 of 102 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 00:52 on Thu 15 Oct to 01:53 on Fri 16 Oct.

    1925-10-14T16:51:48Z → 1925-10-15T17:53:26Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:42–19:24 on the 14th, 17:41–19:23 on the 15th.

    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 102 minutes on the 14th and 102 of 102 on the 15th.

    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 19655 s

  5. 05

    Ruling

    Yama Dīpadāna, Baoding, 1925: Thursday 15 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dīpadāna 1925 falls on Thursday 15 October. Trayodaśī runs from 00:52 on Thu 15 Oct to 01:53 on Fri 16 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1925/yama-dipadana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 15 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 15 Oct
compat-drikpanchangComparison profileThu 15 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 14thCoveredSunset 15thCoveredRuled
Los Angeles08:52 → 09:5317:20101 min17:190 min14 Oct
Chicago10:52 → 11:5317:11103 min17:100 min14 Oct
Jersey City11:52 → 12:5317:18103 min17:160 min14 Oct
Port of Spain12:52 → 13:5317:4997 min17:490 min14 Oct
London16:52 → 17:5317:10106 min17:0845 min14 Oct
Durban18:52 → 19:5318:0443 min18:0590 min15 Oct
Dubai20:52 → 21:5317:530 min17:5299 min15 Oct
Delhi22:22 → 23:2317:530 min17:52100 min15 Oct
Kolkata22:22 → 23:2317:130 min17:1299 min15 Oct
Singapore23:52 → 00:5317:530 min17:5395 min15 Oct
Sydney02:52 → 03:5318:070 min18:0889 min15 Oct
Suva04:52 → 05:5318:060 min18:0792 min15 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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