Ruling · Rudra Vrata · 2007

Wednesday 12 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 486 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 Tuesday 11 September

Pratipadā is absent from madhyāhna. Not taken.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

0 of 48 minutes covered

Midday of Wednesday 12 September

Taken. The only midday Pratipadā reaches.

madhyāhna begins 11:50  12:38 madhyāhna ends
11:0211:2611:5012:1412:3813:0213:26

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 20:44 on Tue 11 Sep to 22:24 on Wed 12 Sep.

    2007-09-11T12:44:14Z → 2007-09-12T14:23:33Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 11th, 11:50–12:38 on the 12th.

    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 11th and 48 of 48 on the 12th.

    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 29133 s

  5. 05

    Ruling

    Rudra Vrata, Baoding, 2007: Wednesday 12 September.

    confidence: determinate

Say it like this

In Baoding, Rudra Vrata 2007 falls on Wednesday 12 September. Pratipadā runs from 20:44 on Tue 11 Sep to 22:24 on Wed 12 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2007/rudra-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 12 Sep
Ahargaṇa, classicalDisc centre, no refractionWed 12 Sep
compat-drikpanchangComparison profileWed 12 Sep
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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles05:44 → 07:2412:2548 min12:250 min11 Sep
Chicago07:44 → 09:2412:2348 min12:230 min11 Sep
Jersey City08:44 → 10:2412:2948 min12:280 min11 Sep
Port of Spain08:44 → 10:2411:3948 min11:380 min11 Sep
London13:44 → 15:2412:330 min12:3248 min12 Sep
Durban14:44 → 16:2411:290 min11:2948 min12 Sep
Dubai16:44 → 18:2411:510 min11:5148 min12 Sep
Delhi18:14 → 19:5411:540 min11:5348 min12 Sep
Kolkata18:14 → 19:5411:090 min11:0948 min12 Sep
Singapore20:44 → 22:2412:370 min12:3748 min12 Sep
Sydney22:44 → 00:2411:280 min11:2848 min12 Sep
Suva00:44 → 02:2411:390 min11:3948 min12 Sep
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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