Ruling · Rudra Vrata · 1979

Thursday 23 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 488 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 Thursday 23 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

Midday of Friday 24 August

Pratipadā is absent from madhyāhna. Not taken.

madhyāhna begins 11:56  12:44 madhyāhna ends
11:0811:3211:5612:2012:4413:0813:32

0 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 01:10 on Thu 23 Aug to 03:48 on Fri 24 Aug.

    1979-08-22T17:10:26Z → 1979-08-23T19:47:58Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 23rd, 11:56–12:44 on the 24th.

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

  3. 03

    Rule

    Pratipadā must be present during madhyāhna. It covers 48 of 48 minutes on the 23rd and 0 of 48 on the 24th.

    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 29305 s

  5. 05

    Ruling

    Rudra Vrata, Baoding, 1979: Thursday 23 August.

    confidence: determinate

Say it like this

In Baoding, Rudra Vrata 1979 falls on Thursday 23 August. Pratipadā runs from 01:10 on Thu 23 Aug to 03:48 on Fri 24 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1979/rudra-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 23 Aug
Ahargaṇa, classicalDisc centre, no refractionThu 23 Aug
compat-drikpanchangComparison profileThu 23 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 22ndCoveredMadhyāhna 23rdCoveredRuled
Los Angeles10:10 → 12:4812:3248 min12:3117 min22 Aug
Chicago12:10 → 14:4812:2948 min12:2948 min22 Aug
Jersey City13:10 → 15:4812:3512 min12:3548 min22 Aug
Port of Spain13:10 → 15:4811:450 min11:4548 min23 Aug
London18:10 → 20:4812:390 min12:3948 min23 Aug
Durban19:10 → 21:4811:350 min11:3548 min23 Aug
Dubai21:10 → 23:4811:580 min11:5748 min23 Aug
Delhi22:40 → 01:1812:000 min12:0048 min23 Aug
Kolkata22:40 → 01:1811:150 min11:1548 min23 Aug
Singapore00:40 → 03:1812:140 min12:1348 min23 Aug
Sydney03:10 → 05:4811:340 min11:3448 min23 Aug
Suva05:10 → 07:4811:460 min11:4548 min23 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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