Ruling · Yama Dīpadāna · 1960

Tuesday 18 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 132 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 Monday 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

Evening of Tuesday 18 October

Taken. The only evening Trayodaśī reaches.

17:36 sunsetpradoṣa ends 19:19
17:1217:3618:0018:2418:4819:1219:36

103 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 21:32 on Mon 17 Oct to 21:42 on Tue 18 Oct.

    1960-10-17T13:32:00Z → 1960-10-18T13:41:54Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:37–19:20 on the 17th, 17:36–19:19 on the 18th.

    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 103 minutes on the 17th and 103 of 103 on the 18th.

    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 7902 s

  5. 05

    Ruling

    Yama Dīpadāna, Baoding, 1960: Tuesday 18 October.

    confidence: determinate

Say it like this

In Baoding, Yama Dīpadāna 1960 falls on Tuesday 18 October. Trayodaśī runs from 21:32 on Mon 17 Oct to 21:42 on Tue 18 Oct and covers all of pradoṣa that evening.

ahargana.org/baoding/festivals/1960/yama-dipadana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 18 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 18 Oct
compat-drikpanchangComparison profileTue 18 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 17thCoveredSunset 18thCoveredRuled
Los Angeles05:32 → 05:4217:16102 min17:150 min17 Oct
Chicago08:32 → 08:4218:06104 min18:040 min17 Oct
Jersey City09:32 → 09:4218:13104 min18:110 min17 Oct
Port of Spain09:32 → 09:4217:4797 min17:470 min17 Oct
London13:32 → 13:4217:03108 min17:010 min17 Oct
Durban15:32 → 15:4218:0789 min18:070 min17 Oct
Dubai17:32 → 17:4217:50100 min17:490 min17 Oct
Delhi19:02 → 19:1217:4928 min17:4884 min18 Oct
Kolkata19:02 → 19:1217:100 min17:0999 min18 Oct
Singapore21:02 → 21:1218:220 min18:2295 min18 Oct
Sydney23:32 → 23:4218:100 min18:1088 min18 Oct
Suva01:32 → 01:4218:070 min18:0892 min18 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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