Ruling · Rudra Vrata · 1942

Friday 11 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 654 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 10 September

Pratipadā is absent from madhyāhna. Not taken.

madhyāhna begins 12:51  13:39 madhyāhna ends
12:0312:2712:5113:1513:3914:0314:27

0 of 48 minutes covered

Midday of Friday 11 September

Taken. The only midday Pratipadā reaches.

madhyāhna begins 12:51  13:39 madhyāhna ends
12:0312:2712:5113:1513:3914:0314:27

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 00:53 on Fri 11 Sep to 00:33 on Sat 12 Sep.

    1942-09-10T15:52:40Z → 1942-09-11T15:33:00Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:51–13:39 on the 10th, 12:51–13:39 on the 11th.

    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 10th and 48 of 48 on the 11th.

    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 39257 s

  5. 05

    Ruling

    Rudra Vrata, Baoding, 1942: Friday 11 September.

    confidence: determinate

Say it like this

In Baoding, Rudra Vrata 1942 falls on Friday 11 September. Pratipadā runs from 00:53 on Fri 11 Sep to 00:33 on Sat 12 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1942/rudra-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 11 Sep
Ahargaṇa, classicalDisc centre, no refractionFri 11 Sep
compat-drikpanchangComparison profileFri 11 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 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles08:53 → 08:3312:2648 min12:250 min10 Sep
Chicago10:53 → 10:3312:2348 min12:230 min10 Sep
Jersey City11:53 → 11:3312:2948 min12:290 min10 Sep
Port of Spain12:53 → 12:3312:3934 min12:390 min10 Sep
London16:53 → 16:3312:330 min12:3348 min11 Sep
Durban17:53 → 17:3311:290 min11:2948 min11 Sep
Dubai19:53 → 19:3311:520 min11:5148 min11 Sep
Delhi22:23 → 22:0312:540 min12:5448 min11 Sep
Kolkata22:23 → 22:0312:100 min12:0948 min11 Sep
Singapore00:53 → 00:3313:380 min13:3748 min11 Sep
Sydney01:53 → 01:3311:290 min11:2848 min11 Sep
Suva03:53 → 03:3311:400 min11:3948 min11 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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