Ruling · Rudra Vrata · 2093

Saturday 22 August

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 1 min 45 s away. Say “contested”.

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 Saturday 22 August

Taken. Both middays qualify; the rule takes the first.

madhyāhna begins 11:57  12:45 madhyāhna ends
Pratipadā begins 11:55:16
11:0911:3311:5712:2112:4513:0913:33

48 of 48 minutes covered

Midday of Sunday 23 August

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:57  12:45 madhyāhna ends
Pratipadā ends 13:31:43
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 11:55 on Sat 22 Aug to 13:32 on Sun 23 Aug.

    2093-08-22T03:55:17Z → 2093-08-23T05:31:43Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 22nd, 11:57–12:45 on the 23rd.

    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 22nd and 48 of 48 on the 23rd.

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

  4. 04

    Tie-break

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 105 s < 300 s

  5. 05

    Ruling

    Rudra Vrata, Baoding, 2093: Saturday 22 August.

    confidence: boundary (margin)

Say it like this

In Baoding, Rudra Vrata 2093 falls on Saturday 22 August. Pratipadā runs from 11:55 on Sat 22 Aug to 13:32 on Sun 23 Aug and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken. It is 1 min 45 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/2093/rudra-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 22 Aug
Ahargaṇa, classicalDisc centre, no refractionSat 22 Aug
compat-drikpanchangComparison profileSat 22 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 Angeles20:55 → 22:3212:3248 min12:310 min22 Aug
Chicago22:55 → 00:3212:2948 min12:290 min22 Aug
Jersey City23:55 → 01:3212:3548 min12:350 min22 Aug
Port of Spain23:55 → 01:3211:4548 min11:450 min22 Aug
London04:55 → 06:3212:3948 min12:390 min22 Aug
Durban05:55 → 07:3211:3548 min11:350 min22 Aug
Dubai07:55 → 09:3211:5848 min11:570 min22 Aug
Delhi09:25 → 11:0212:0048 min12:000 min22 Aug
Kolkata09:25 → 11:0211:1648 min11:150 min22 Aug
Singapore11:55 → 13:3212:4448 min12:4448 min22 Aug
Sydney13:55 → 15:3211:350 min11:3448 min23 Aug
Suva15:55 → 17:3211:460 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

About Ahargaṇa