Ruling · Rudra Vrata · 1928

Friday 14 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 128 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 Friday 14 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 Saturday 15 September

Pratipadā is absent from madhyāhna. Not taken.

madhyāhna begins 11:49  12:37 madhyāhna ends
11:0111:2511:4912:1312:3713:0113:25

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 09:20 on Fri 14 Sep to 09:41 on Sat 15 Sep.

    1928-09-14T01:20:15Z → 1928-09-15T01:40:55Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:50–12:38 on the 14th, 11:49–12:37 on the 15th.

    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 14th and 0 of 48 on the 15th.

    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 7694 s

  5. 05

    Ruling

    Rudra Vrata, Baoding, 1928: Friday 14 September.

    confidence: determinate

Say it like this

In Baoding, Rudra Vrata 1928 falls on Friday 14 September. Pratipadā runs from 09:20 on Fri 14 Sep to 09:41 on Sat 15 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1928/rudra-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 14 Sep
Ahargaṇa, classicalDisc centre, no refractionFri 14 Sep
compat-drikpanchangComparison profileFri 14 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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles17:20 → 17:4111:2448 min11:240 min14 Sep
Chicago20:20 → 20:4112:2248 min12:210 min14 Sep
Jersey City21:20 → 21:4112:2748 min12:270 min14 Sep
Port of Spain21:20 → 21:4111:3848 min11:370 min14 Sep
London02:20 → 02:4112:3248 min12:310 min14 Sep
Durban03:20 → 03:4111:2848 min11:270 min14 Sep
Dubai05:20 → 05:4111:5048 min11:500 min14 Sep
Delhi06:50 → 07:1111:5348 min11:520 min14 Sep
Kolkata06:50 → 07:1111:0848 min11:080 min14 Sep
Singapore08:20 → 08:4111:3648 min11:360 min14 Sep
Sydney11:20 → 11:4111:2748 min11:2714 min14 Sep
Suva13:20 → 13:4111:380 min11:3848 min15 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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