Ruling · Rudra Vrata · 1975

Saturday 6 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 514 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 Saturday 6 September

Taken. The only midday Pratipadā reaches.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

48 of 48 minutes covered

Midday of Sunday 7 September

Pratipadā is absent from madhyāhna. Not taken.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

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 03:19 on Sat 6 Sep to 23:25 on Sat 6 Sep.

    1975-09-05T19:18:41Z → 1975-09-06T15:24:54Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 6th, 11:52–12:40 on the 7th.

    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 6th and 0 of 48 on the 7th.

    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 30826 s

  5. 05

    Ruling

    Rudra Vrata, Baoding, 1975: Saturday 6 September.

    confidence: determinate

Say it like this

In Baoding, Rudra Vrata 1975 falls on Saturday 6 September. Pratipadā runs from 03:19 on Sat 6 Sep to 23:25 on Sat 6 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1975/rudra-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 6 Sep
Ahargaṇa, classicalDisc centre, no refractionSat 6 Sep
compat-drikpanchangComparison profileSat 6 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 5thCoveredMadhyāhna 6thCoveredRuled
Los Angeles12:19 → 08:2512:2748 min12:270 min5 Sep
Chicago14:19 → 10:2512:250 min12:250 min6 Sep
Jersey City15:19 → 11:2512:310 min12:300 min6 Sep
Port of Spain15:19 → 11:2511:410 min11:400 min6 Sep
London20:19 → 16:2512:350 min12:3448 min6 Sep
Durban21:19 → 17:2511:310 min11:3148 min6 Sep
Dubai23:19 → 19:2511:530 min11:5348 min6 Sep
Delhi00:49 → 20:5511:560 min11:5548 min6 Sep
Kolkata00:49 → 20:5511:110 min11:1148 min6 Sep
Singapore02:49 → 22:5512:100 min12:0948 min6 Sep
Sydney05:19 → 01:2511:300 min11:3048 min6 Sep
Suva07:19 → 03:2511:410 min11:4148 min6 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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