Ruling · Yama Dīpadāna · 2000

Wednesday 25 October

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 28 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two evenings

One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.

Evening of Tuesday 24 October

Trayodaśī is absent from pradoṣa. Not taken.

16:37 sunsetpradoṣa ends 18:26
16:1316:3717:0117:2517:4918:1318:37

0 of 109 minutes covered

Evening of Wednesday 25 October

Taken. The only evening Trayodaśī reaches.

16:36 sunsetpradoṣa ends 18:25
Trayodaśī ends 17:56:22
16:1216:3617:0017:2417:4818:1218:36

81 of 109 minutes covered, the first 81

Trayodaśī presentPradoṣa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Trayodaśī runs from 19:27 on Tue 24 Oct to 17:56 on Wed 25 Oct.

    2000-10-24T11:26:54Z → 2000-10-25T09:56:23Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 16:37–18:26 on the 24th, 16:36–18:25 on the 25th.

    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 109 minutes on the 24th and 81 of 109 on the 25th.

    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 1702 s

  5. 05

    Ruling

    Yama Dīpadāna, Daqing, 2000: Wednesday 25 October.

    confidence: determinate

Say it like this

In Daqing, Yama Dīpadāna 2000 falls on Wednesday 25 October. Trayodaśī runs from 19:27 on Tue 24 Oct to 17:56 on Wed 25 Oct and covers 81 of 109 minutes of pradoṣa that evening.

ahargana.org/daqing/festivals/2000/yama-dipadana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 25 Oct
Ahargaṇa, classicalDisc centre, no refractionWed 25 Oct
compat-drikpanchangComparison profileWed 25 Oct
No institution has a recorded ruling for Daqing.

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 24thCoveredSunset 25thCoveredRuled
Los Angeles04:27 → 02:5618:08104 min18:060 min24 Oct
Chicago06:27 → 04:5617:55107 min17:530 min24 Oct
Jersey City07:27 → 05:5618:02106 min18:010 min24 Oct
Port of Spain07:27 → 05:5617:4498 min17:440 min24 Oct
London12:27 → 10:5617:48111 min17:460 min24 Oct
Durban13:27 → 11:5618:1287 min18:130 min24 Oct
Dubai15:27 → 13:5617:44101 min17:430 min24 Oct
Delhi16:57 → 15:2617:42102 min17:410 min24 Oct
Kolkata16:57 → 15:2617:04100 min17:030 min24 Oct
Singapore19:27 → 17:5618:5159 min18:510 min24 Oct
Sydney22:27 → 20:5619:160 min19:1786 min25 Oct
Suva23:27 → 21:5618:100 min18:1091 min25 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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