Ruling · Yama Dīpadāna · 2066

Saturday 16 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 301 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 Saturday 16 October

Taken. The only evening Trayodaśī reaches.

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

103 of 103 minutes covered

Evening of Sunday 17 October

Trayodaśī is absent from pradoṣa. Not taken.

17:37 sunsetpradoṣa ends 19:20
17:1317:3718:0118:2518:4919:1319:37

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 12:37 on Sat 16 Oct to 12:17 on Sun 17 Oct.

    2066-10-16T04:37:29Z → 2066-10-17T04:16:41Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:38–19:21 on the 16th, 17:37–19:20 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 103 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 18050 s

  5. 05

    Ruling

    Yama Dīpadāna, Baoding, 2066: Saturday 16 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dīpadāna 2066 falls on Saturday 16 October. Trayodaśī runs from 12:37 on Sat 16 Oct to 12:17 on Sun 17 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2066/yama-dipadana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 16 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 16 Oct
compat-drikpanchangComparison profileSat 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 Angeles21:37 → 21:1718:17102 min18:160 min16 Oct
Chicago23:37 → 23:1718:07104 min18:050 min16 Oct
Jersey City00:37 → 00:1718:14104 min18:120 min16 Oct
Port of Spain00:37 → 00:1717:4897 min17:470 min16 Oct
London05:37 → 05:1718:04107 min18:020 min16 Oct
Durban06:37 → 06:1718:0689 min18:070 min16 Oct
Dubai08:37 → 08:1717:51100 min17:500 min16 Oct
Delhi10:07 → 09:4717:50100 min17:490 min16 Oct
Kolkata10:07 → 09:4717:1099 min17:100 min16 Oct
Singapore12:37 → 12:1718:5395 min18:520 min16 Oct
Sydney15:37 → 15:1719:0988 min19:100 min16 Oct
Suva16:37 → 16:1718:0792 min18:070 min16 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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