Ruling · Yama Dīpadāna · 1906

Monday 15 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 238 minutes.

Decide it for

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 15 October

Taken. The only evening Trayodaśī reaches.

17:41 sunsetpradoṣa ends 19:24
17:1717:4118:0518:2918:5319:1719:41

102 of 102 minutes covered

Evening of Tuesday 16 October

Trayodaśī is absent from pradoṣa. Not taken.

17:40 sunsetpradoṣa ends 19:22
17:1617:4018:0418:2818:5219:1619:40

0 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 13:43 on Mon 15 Oct to 11:59 on Tue 16 Oct.

    1906-10-15T05:42:56Z → 1906-10-16T03:58:50Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:41–19:24 on the 15th, 17:40–19:22 on the 16th.

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

  3. 03

    Rule

    Trayodaśī must be present during pradoṣa. It covers 102 of 102 minutes on the 15th and 0 of 102 on the 16th.

    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 14309 s

  5. 05

    Ruling

    Yama Dīpadāna, Baoding, 1906: Monday 15 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dīpadāna 1906 falls on Monday 15 October. Trayodaśī runs from 13:43 on Mon 15 Oct to 11:59 on Tue 16 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1906/yama-dipadana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 15 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 15 Oct
compat-drikpanchangComparison profileMon 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 15thCoveredSunset 16thCoveredRuled
Los Angeles21:43 → 19:5917:20101 min17:180 min15 Oct
Chicago23:43 → 21:5917:10103 min17:090 min15 Oct
Jersey City00:43 → 22:5917:17103 min17:160 min15 Oct
Port of Spain01:43 → 23:5917:4997 min17:480 min15 Oct
London05:43 → 03:5917:09106 min17:070 min15 Oct
Durban07:43 → 05:5918:0590 min18:050 min15 Oct
Dubai09:24 → 07:4017:3499 min17:330 min15 Oct
Delhi11:13 → 09:2917:52100 min17:510 min15 Oct
Kolkata11:13 → 09:2917:1299 min17:110 min15 Oct
Singapore12:43 → 10:5917:5395 min17:530 min15 Oct
Sydney15:43 → 13:5918:0789 min18:080 min15 Oct
Suva17:38 → 15:5418:0192 min18:020 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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