Ruling · Rudra Vrata · 1963

Tuesday 20 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 169 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Monday 19 August

Pratipadā is absent from madhyāhna. Not taken.

madhyāhna begins 11:58  12:46 madhyāhna ends
11:1011:3411:5812:2212:4613:1013:34

0 of 48 minutes covered

Midday of Tuesday 20 August

Taken. The only midday Pratipadā reaches.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

48 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Pratipadā runs from 15:34 on Mon 19 Aug to 15:38 on Tue 20 Aug.

    1963-08-19T07:34:30Z → 1963-08-20T07:37:47Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 19th, 11:57–12:45 on the 20th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pratipadā must be present during madhyāhna. It covers 0 of 48 minutes on the 19th and 48 of 48 on the 20th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

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

    priority: purvaviddha → only-day · margin 10133 s

  5. 05

    Ruling

    Rudra Vrata, Baoding, 1963: Tuesday 20 August.

    confidence: determinate

Say it like this

In Baoding, Rudra Vrata 1963 falls on Tuesday 20 August. Pratipadā runs from 15:34 on Mon 19 Aug to 15:38 on Tue 20 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1963/rudra-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 20 Aug
Ahargaṇa, classicalDisc centre, no refractionTue 20 Aug
compat-drikpanchangComparison profileTue 20 Aug
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/rudra-vrata · ruleset 2026.3-draft

Month
Bhādrapada, amānta
Pakṣa · aṅga
Śukla · Pratipadā
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 103

“S 1 Rudra vrata (purvaviddha).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePratipadāMadhyāhna 19thCoveredMadhyāhna 20thCoveredRuled
Los Angeles00:34 → 00:3812:3248 min12:320 min19 Aug
Chicago02:34 → 02:3812:3048 min12:300 min19 Aug
Jersey City03:34 → 03:3812:3648 min12:350 min19 Aug
Port of Spain03:34 → 03:3811:4648 min11:450 min19 Aug
London08:34 → 08:3812:4048 min12:390 min19 Aug
Durban09:34 → 09:3811:3648 min11:360 min19 Aug
Dubai11:34 → 11:3811:5848 min11:580 min19 Aug
Delhi13:04 → 13:0812:010 min12:0048 min20 Aug
Kolkata13:04 → 13:0811:160 min11:1648 min20 Aug
Singapore15:04 → 15:0812:140 min12:1448 min20 Aug
Sydney17:34 → 17:3811:350 min11:3548 min20 Aug
Suva19:34 → 19:3811:460 min11:4648 min20 Aug
Profile · tradition
pac-rp@2026.1 · smarta
Rule
rudra-vrata@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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