Ruling · Rudra Vrata · 1922

Wednesday 23 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 443 minutes.

Decide it for

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 Wednesday 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 Thursday 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 04:34 on Wed 23 Aug to 00:58 on Thu 24 Aug.

    1922-08-22T20:33:34Z → 1922-08-23T16:58:19Z

  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 26581 s

  5. 05

    Ruling

    Rudra Vrata, Baoding, 1922: Wednesday 23 August.

    confidence: determinate

Say it like this

In Baoding, Rudra Vrata 1922 falls on Wednesday 23 August. Pratipadā runs from 04:34 on Wed 23 Aug to 00:58 on Thu 24 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1922/rudra-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 23 Aug
Ahargaṇa, classicalDisc centre, no refractionWed 23 Aug
compat-drikpanchangComparison profileWed 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 Angeles12:34 → 08:5811:320 min11:310 min23 Aug
Chicago15:34 → 11:5812:290 min12:290 min23 Aug
Jersey City16:34 → 12:5812:350 min12:3524 min23 Aug
Port of Spain16:34 → 12:5811:450 min11:4548 min23 Aug
London21:34 → 17:5812:390 min12:3948 min23 Aug
Durban22:34 → 18:5811:350 min11:3548 min23 Aug
Dubai00:34 → 20:5811:580 min11:5748 min23 Aug
Delhi02:04 → 22:2812:000 min12:0048 min23 Aug
Kolkata02:04 → 22:2811:150 min11:1548 min23 Aug
Singapore03:34 → 23:5811:440 min11:4348 min23 Aug
Sydney06:34 → 02:5811:340 min11:3448 min23 Aug
Suva08:34 → 04:5811:450 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

About Ahargaṇa