Ruling · Rudra Vrata · 2089

Monday 5 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 482 minutes.

Decide it for

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 Sunday 4 September

Pratipadā is absent from madhyāhna. Not taken.

madhyāhna begins 11:53  12:41 madhyāhna ends
11:0511:2911:5312:1712:4113:0513:29

0 of 48 minutes covered

Midday of Monday 5 September

Taken. The only midday Pratipadā reaches.

madhyāhna begins 11:53  12:41 madhyāhna ends
11:0511:2911:5312:1712:4113:0513:29

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 23:59 on Sun 4 Sep to 20:43 on Mon 5 Sep.

    2089-09-04T15:59:25Z → 2089-09-05T12:43:02Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 4th, 11:53–12:41 on the 5th.

    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 4th and 48 of 48 on the 5th.

    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 28937 s

  5. 05

    Ruling

    Rudra Vrata, Baoding, 2089: Monday 5 September.

    confidence: determinate

Say it like this

In Baoding, Rudra Vrata 2089 falls on Monday 5 September. Pratipadā runs from 23:59 on Sun 4 Sep to 20:43 on Mon 5 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2089/rudra-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 5 Sep
Ahargaṇa, classicalDisc centre, no refractionMon 5 Sep
compat-drikpanchangComparison profileMon 5 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 4thCoveredMadhyāhna 5thCoveredRuled
Los Angeles08:59 → 05:4312:2848 min12:270 min4 Sep
Chicago10:59 → 07:4312:2548 min12:250 min4 Sep
Jersey City11:59 → 08:4312:3148 min12:310 min4 Sep
Port of Spain11:59 → 08:4311:4130 min11:410 min4 Sep
London16:59 → 13:4312:350 min12:3548 min5 Sep
Durban17:59 → 14:4311:310 min11:3148 min5 Sep
Dubai19:59 → 16:4311:540 min11:5348 min5 Sep
Delhi21:29 → 18:1311:560 min11:5648 min5 Sep
Kolkata21:29 → 18:1311:120 min11:1148 min5 Sep
Singapore23:59 → 20:4312:400 min12:3948 min5 Sep
Sydney01:59 → 22:4311:310 min11:3048 min5 Sep
Suva03:59 → 00:4311:420 min11:4148 min5 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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