Ruling · Dyūta Pratipad · 1970

Saturday 31 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 253 minutes.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two forenoons

One ghaṭī is 24 minutes. Pūrvāhṇa is first 5 of 15 day muhūrtas.

Forenoon of Friday 30 October

Pratipadā is absent from pūrvāhṇa. Not taken.

06:43 sunrisepūrvāhṇa ends 10:15
06:1907:0707:5508:4309:3110:19

0 of 213 minutes covered

Forenoon of Saturday 31 October

Taken. The only forenoon Pratipadā reaches.

06:44 sunrisepūrvāhṇa ends 10:16
06:2007:0807:5608:4409:3210:20

212 of 212 minutes covered

Pratipadā presentPūrvāhṇa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pratipadā runs from 14:28 on Fri 30 Oct to 14:54 on Sat 31 Oct.

    1970-10-30T06:27:54Z → 1970-10-31T06:53:36Z

  2. 02

    Kāla

    Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:43–10:15 on the 30th, 06:44–10:16 on the 31st.

    purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be present during pūrvāhṇa. It covers 0 of 213 minutes on the 30th and 212 of 212 on the 31st.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Only one forenoon qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 15158 s

  5. 05

    Ruling

    Dyūta Pratipad, Baoding, 1970: Saturday 31 October.

    confidence: determinate

Say it like this

In Baoding, Dyūta Pratipad 1970 falls on Saturday 31 October. Pratipadā runs from 14:28 on Fri 30 Oct to 14:54 on Sat 31 Oct and covers all of pūrvāhṇa that forenoon.

ahargana.org/baoding/festivals/1970/dyuta-pratipad · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 31 Oct
Ahargaṇa, classicalDisc centre, no refractionSat 31 Oct
compat-drikpanchangComparison profileSat 31 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/dyuta-pratipad · ruleset 2026.3-draft

Month
Kārtika, amānta
Pakṣa · aṅga
Śukla · Pratipadā
Kāla
Pūrvāhṇa
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 104

“S 1 Govardhana puja, Annakuta [purvaviddha], Balidaityaraja puja (pradosa), Dyuta pratipad (purvahna).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePratipadāSunrise 30thCoveredSunrise 31stCoveredRuled
Los Angeles22:28 → 22:5406:11217 min06:120 min30 Oct
Chicago00:28 → 00:5406:21209 min06:220 min30 Oct
Jersey City01:28 → 01:5406:24210 min06:250 min30 Oct
Port of Spain02:28 → 02:5405:57235 min05:570 min30 Oct
London07:28 → 07:5407:50196 min07:522 min30 Oct
Durban08:28 → 08:5405:0460 min05:03231 min31 Oct
Dubai10:28 → 10:5406:250 min06:26224 min31 Oct
Delhi11:58 → 12:2406:310 min06:32222 min31 Oct
Kolkata11:58 → 12:2405:400 min05:40226 min31 Oct
Singapore13:58 → 14:2406:160 min06:16241 min31 Oct
Sydney16:28 → 16:5404:580 min04:57268 min31 Oct
Suva18:28 → 18:5405:290 min05:28255 min31 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
dyuta-pratipad@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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