Ruling · Yama Dīpadāna · 1940

Monday 28 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 44 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 28 October

Taken. The only evening Trayodaśī reaches.

17:23 sunsetpradoṣa ends 19:09
16:5917:2317:4718:1118:3518:5919:23

107 of 107 minutes covered

Evening of Tuesday 29 October

Trayodaśī is absent from pradoṣa. Not taken.

17:22 sunsetpradoṣa ends 19:08
16:5817:2217:4618:1018:3418:5819:22

0 of 107 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 16:39 on Mon 28 Oct to 13:16 on Tue 29 Oct.

    1940-10-28T08:38:36Z → 1940-10-29T05:15:45Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:23–19:09 on the 28th, 17:22–19:08 on the 29th.

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

  3. 03

    Rule

    Trayodaśī must be present during pradoṣa. It covers 107 of 107 minutes on the 28th and 0 of 107 on the 29th.

    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 2654 s

  5. 05

    Ruling

    Yama Dīpadāna, Baoding, 1940: Monday 28 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dīpadāna 1940 falls on Monday 28 October. Trayodaśī runs from 16:39 on Mon 28 Oct to 13:16 on Tue 29 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1940/yama-dipadana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 28 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 28 Oct
compat-drikpanchangComparison profileMon 28 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 28thCoveredSunset 29thCoveredRuled
Los Angeles00:39 → 21:1617:04105 min17:030 min28 Oct
Chicago02:39 → 23:1616:50108 min16:490 min28 Oct
Jersey City03:39 → 00:1616:57107 min16:560 min28 Oct
Port of Spain04:39 → 01:1617:4398 min17:430 min28 Oct
London09:39 → 06:1617:41113 min17:390 min28 Oct
Durban10:39 → 07:1618:1487 min18:150 min28 Oct
Dubai12:39 → 09:1617:41102 min17:400 min28 Oct
Delhi14:09 → 10:4617:39103 min17:380 min28 Oct
Kolkata14:09 → 10:4617:02101 min17:010 min28 Oct
Singapore15:59 → 12:3618:1095 min18:100 min28 Oct
Sydney18:39 → 15:1618:1966 min18:200 min28 Oct
Suva20:39 → 17:1618:110 min18:110 min28 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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