Ruling · Yama Dīpadāna · 1978

Sunday 29 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 598 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 28 October

Trayodaśī is absent from pradoṣa. Not taken.

17:23 sunsetpradoṣa ends 19:10
16:5917:2317:4718:1118:3518:5919:23

0 of 106 minutes covered

Evening of Sunday 29 October

Taken. The only evening Trayodaśī reaches.

17:22 sunsetpradoṣa ends 19:09
16:5817:2217:4618:1018:3418:5819:22

107 of 107 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 05:08 on Sun 29 Oct to 05:27 on Mon 30 Oct.

    1978-10-28T21:07:38Z → 1978-10-29T21:27:00Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:23–19:10 on the 28th, 17:22–19:09 on the 29th.

    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 106 minutes on the 28th and 107 of 107 on the 29th.

    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 35885 s

  5. 05

    Ruling

    Yama Dīpadāna, Baoding, 1978: Sunday 29 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dīpadāna 1978 falls on Sunday 29 October. Trayodaśī runs from 05:08 on Sun 29 Oct to 05:27 on Mon 30 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1978/yama-dipadana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 29 Oct
Ahargaṇa, classicalDisc centre, no refractionSun 29 Oct
compat-drikpanchangComparison profileSun 29 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 28thCoveredSunset 29thCoveredRuled
Los Angeles14:08 → 13:2718:04105 min17:030 min28 Oct
Chicago16:08 → 15:2717:50108 min16:490 min28 Oct
Jersey City17:08 → 16:2717:58107 min16:560 min28 Oct
Port of Spain17:08 → 17:2717:4398 min17:430 min28 Oct
London22:08 → 21:2717:410 min16:39113 min29 Oct
Durban23:08 → 23:2718:140 min18:1587 min29 Oct
Dubai01:08 → 01:2717:410 min17:40102 min29 Oct
Delhi02:38 → 02:5717:390 min17:39103 min29 Oct
Kolkata02:38 → 02:5717:020 min17:01101 min29 Oct
Singapore04:38 → 04:5718:200 min18:2095 min29 Oct
Sydney08:08 → 08:2718:190 min19:2085 min29 Oct
Suva09:08 → 09:2718:110 min18:1190 min29 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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