Ruling · Yama Dīpadāna · 1975

Saturday 1 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 512 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 Friday 31 October

Trayodaśī is absent from pradoṣa. Not taken.

17:20 sunsetpradoṣa ends 19:07
16:5617:2017:4418:0818:3218:5619:20

0 of 107 minutes covered

Evening of Saturday 1 November

Taken. The only evening Trayodaśī reaches.

17:19 sunsetpradoṣa ends 19:06
16:5517:1917:4318:0718:3118:5519:19

108 of 108 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 06:59 on Sat 1 Nov to 03:39 on Sun 2 Nov.

    1975-10-31T22:58:32Z → 1975-11-01T19:38:39Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:20–19:07 on the 31st, 17:19–19:06 on the 1st.

    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 107 minutes on the 31st and 108 of 108 on the 1st.

    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 30745 s

  5. 05

    Ruling

    Yama Dīpadāna, Baoding, 1975: Saturday 1 November.

    confidence: determinate

Say it like this

In Baoding, Yama Dīpadāna 1975 falls on Saturday 1 November. Trayodaśī runs from 06:59 on Sat 1 Nov to 03:39 on Sun 2 Nov and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1975/yama-dipadana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 1 Nov
Ahargaṇa, classicalDisc centre, no refractionSat 1 Nov
compat-drikpanchangComparison profileSat 1 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 31stCoveredSunset 1stCoveredRuled
Los Angeles14:59 → 11:3917:01105 min17:000 min31 Oct
Chicago16:59 → 13:3916:4797 min16:450 min31 Oct
Jersey City17:59 → 14:3916:5444 min16:530 min31 Oct
Port of Spain18:59 → 15:3917:4222 min17:420 min31 Oct
London22:59 → 19:3916:360 min16:34115 min1 Nov
Durban00:59 → 21:3918:160 min18:1786 min1 Nov
Dubai02:59 → 23:3917:390 min17:38102 min1 Nov
Delhi04:29 → 01:0917:370 min17:36104 min1 Nov
Kolkata04:29 → 01:0917:000 min16:59102 min1 Nov
Singapore06:29 → 03:0918:200 min18:2095 min1 Nov
Sydney09:59 → 06:3919:210 min19:2284 min1 Nov
Suva10:59 → 07:3918:120 min18:1290 min1 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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