Ruling · Yama Dīpadāna · 1933

Monday 16 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 18 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 16 October

Taken. The only evening Trayodaśī reaches.

17:39 sunsetpradoṣa ends 19:22
Trayodaśī begins 18:08:56
17:1517:3918:0318:2718:5119:1519:39

73 of 103 minutes covered, the last 73

Evening of Tuesday 17 October

Trayodaśī is absent from pradoṣa. Not taken.

17:38 sunsetpradoṣa ends 19:21
Trayodaśī ends 17:20:20
17:1417:3818:0218:2618:5019:1419:38

0 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 18:09 on Mon 16 Oct to 17:20 on Tue 17 Oct.

    1933-10-16T10:08:56Z → 1933-10-17T09:20:21Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:39–19:22 on the 16th, 17:38–19:21 on the 17th.

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

  3. 03

    Rule

    Trayodaśī must be present during pradoṣa. It covers 73 of 103 minutes on the 16th and 0 of 103 on the 17th.

    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 1051 s

  5. 05

    Ruling

    Yama Dīpadāna, Baoding, 1933: Monday 16 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dīpadāna 1933 falls on Monday 16 October. Trayodaśī runs from 18:09 on Mon 16 Oct to 17:20 on Tue 17 Oct and covers 73 of 103 minutes of pradoṣa that evening.

ahargana.org/baoding/festivals/1933/yama-dipadana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 16 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 16 Oct
compat-drikpanchangComparison profileMon 16 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 16thCoveredSunset 17thCoveredRuled
Los Angeles02:09 → 01:2017:18102 min17:160 min16 Oct
Chicago04:09 → 03:2017:08104 min17:060 min16 Oct
Jersey City05:09 → 04:2017:15103 min17:130 min16 Oct
Port of Spain06:09 → 05:2017:4897 min17:480 min16 Oct
London10:09 → 09:2017:06107 min17:040 min16 Oct
Durban12:09 → 11:2018:0689 min18:060 min16 Oct
Dubai14:09 → 13:2017:51100 min17:500 min16 Oct
Delhi15:39 → 14:5017:51100 min17:500 min16 Oct
Kolkata15:39 → 14:5017:1199 min17:100 min16 Oct
Singapore17:29 → 16:4018:1395 min18:120 min16 Oct
Sydney20:09 → 19:2018:080 min18:0971 min17 Oct
Suva22:09 → 21:2018:070 min18:0792 min17 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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