Ruling · Rudra Vrata · 2064

Thursday 11 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 99 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 11 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

Midday of Friday 12 September

Pratipadā is absent from madhyāhna. Not taken.

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

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 10:11 on Thu 11 Sep to 06:33 on Fri 12 Sep.

    2064-09-11T02:11:27Z → 2064-09-11T22:32:57Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:50–12:38 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 48 of 48 minutes on the 11th and 0 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 5938 s

  5. 05

    Ruling

    Rudra Vrata, Baoding, 2064: Thursday 11 September.

    confidence: determinate

Say it like this

In Baoding, Rudra Vrata 2064 falls on Thursday 11 September. Pratipadā runs from 10:11 on Thu 11 Sep to 06:33 on Fri 12 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2064/rudra-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 11 Sep
Ahargaṇa, classicalDisc centre, no refractionThu 11 Sep
compat-drikpanchangComparison profileThu 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 11thCoveredMadhyāhna 12thCoveredRuled
Los Angeles19:11 → 15:3312:2548 min12:250 min11 Sep
Chicago21:11 → 17:3312:2348 min12:220 min11 Sep
Jersey City22:11 → 18:3312:2848 min12:280 min11 Sep
Port of Spain22:11 → 18:3311:3848 min11:380 min11 Sep
London03:11 → 23:3312:3248 min12:320 min11 Sep
Durban04:11 → 00:3311:2948 min11:280 min11 Sep
Dubai06:11 → 02:3311:5148 min11:510 min11 Sep
Delhi07:41 → 04:0311:5348 min11:530 min11 Sep
Kolkata07:41 → 04:0311:0948 min11:090 min11 Sep
Singapore10:11 → 06:3312:3748 min12:370 min11 Sep
Sydney12:11 → 08:3311:285 min11:280 min11 Sep
Suva14:11 → 10:3311:390 min11:390 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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