Ruling · Yama Dīpadāna · 1917

Monday 12 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 275 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 Sunday 11 November

Trayodaśī is absent from pradoṣa. Not taken.

17:08 sunsetpradoṣa ends 18:59
16:4417:0817:3217:5618:2018:4419:0819:32

0 of 110 minutes covered

Evening of Monday 12 November

Taken. The only evening Trayodaśī reaches.

17:07 sunsetpradoṣa ends 18:58
16:4317:0717:3117:5518:1918:4319:0719:31

111 of 111 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 23:34 on Sun 11 Nov to 01:02 on Tue 13 Nov.

    1917-11-11T15:34:07Z → 1917-11-12T17:02:01Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:08–18:59 on the 11th, 17:07–18:58 on the 12th.

    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 110 minutes on the 11th and 111 of 111 on the 12th.

    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 16521 s

  5. 05

    Ruling

    Yama Dīpadāna, Baoding, 1917: Monday 12 November.

    confidence: determinate

Say it like this

In Baoding, Yama Dīpadāna 1917 falls on Monday 12 November. Trayodaśī runs from 23:34 on Sun 11 Nov to 01:02 on Tue 13 Nov and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1917/yama-dipadana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 12 Nov
Ahargaṇa, classicalDisc centre, no refractionMon 12 Nov
compat-drikpanchangComparison profileMon 12 Nov
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 11thCoveredSunset 12thCoveredRuled
Los Angeles07:34 → 09:0216:52108 min16:510 min11 Nov
Chicago09:34 → 11:0216:34112 min16:330 min11 Nov
Jersey City10:34 → 12:0216:42112 min16:410 min11 Nov
Port of Spain11:34 → 13:0217:4099 min17:400 min11 Nov
London15:34 → 17:0216:17119 min16:1646 min11 Nov
Durban17:34 → 19:0218:2584 min18:2636 min11 Nov
Dubai19:15 → 20:4317:140 min17:13104 min12 Nov
Delhi21:04 → 22:3217:300 min17:29106 min12 Nov
Kolkata21:04 → 22:3216:540 min16:54103 min12 Nov
Singapore22:34 → 00:0217:500 min17:5096 min12 Nov
Sydney01:34 → 03:0218:320 min18:3382 min12 Nov
Suva03:34 → 05:0218:170 min18:1889 min12 Nov
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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