Ruling · Yama Dīpadāna · 2020

Friday 13 November

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 93 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 Thursday 12 November

Trayodaśī is absent from pradoṣa. Not taken.

17:06 sunsetpradoṣa ends 18:57
16:4217:0617:3017:5418:1818:4219:0619:30

0 of 111 minutes covered

Evening of Friday 13 November

Taken. The only evening Trayodaśī reaches.

17:06 sunsetpradoṣa ends 18:57
16:4217:0617:3017:5418:1818:4219:0619:30

111 of 111 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 00:00 on Fri 13 Nov to 20:29 on Fri 13 Nov.

    2020-11-12T16:00:30Z → 2020-11-13T12:29:27Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:06–18:57 on the 12th, 17:06–18:57 on the 13th.

    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 111 minutes on the 12th and 111 of 111 on the 13th.

    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 5554 s

  5. 05

    Ruling

    Yama Dīpadāna, Baoding, 2020: Friday 13 November.

    confidence: determinate

Say it like this

In Baoding, Yama Dīpadāna 2020 falls on Friday 13 November. Trayodaśī runs from 00:00 on Fri 13 Nov to 20:29 on Fri 13 Nov and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/2020/yama-dipadana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 13 Nov
Ahargaṇa, classicalDisc centre, no refractionFri 13 Nov
compat-drikpanchangComparison profileFri 13 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 12thCoveredSunset 13thCoveredRuled
Los Angeles08:00 → 04:2916:50109 min16:500 min12 Nov
Chicago10:00 → 06:2916:32113 min16:310 min12 Nov
Jersey City11:00 → 07:2916:40112 min16:390 min12 Nov
Port of Spain12:00 → 08:2917:4099 min17:400 min12 Nov
London16:00 → 12:2916:14120 min16:130 min12 Nov
Durban18:00 → 14:2918:2784 min18:280 min12 Nov
Dubai20:00 → 16:2917:320 min17:310 min12 Nov
Delhi21:30 → 17:5917:280 min17:2832 min13 Nov
Kolkata21:30 → 17:5916:540 min16:5366 min13 Nov
Singapore00:00 → 20:2918:500 min18:5196 min13 Nov
Sydney03:00 → 23:2919:330 min19:3481 min13 Nov
Suva04:00 → 00:2918:180 min18:1989 min13 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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