Ruling · Rudra Vrata · 2083

Sunday 12 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 222 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 12 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 Monday 13 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 08:09 on Sun 12 Sep to 06:23 on Mon 13 Sep.

    2083-09-12T00:08:41Z → 2083-09-12T22:22:49Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:50–12:38 on the 12th, 11:50–12:38 on the 13th.

    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 12th and 0 of 48 on the 13th.

    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 13305 s

  5. 05

    Ruling

    Rudra Vrata, Baoding, 2083: Sunday 12 September.

    confidence: determinate

Say it like this

In Baoding, Rudra Vrata 2083 falls on Sunday 12 September. Pratipadā runs from 08:09 on Sun 12 Sep to 06:23 on Mon 13 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2083/rudra-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 12 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 12 Sep
compat-drikpanchangComparison profileSun 12 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles17:09 → 15:2312:2548 min12:250 min12 Sep
Chicago19:09 → 17:2312:2348 min12:220 min12 Sep
Jersey City20:09 → 18:2312:2848 min12:280 min12 Sep
Port of Spain20:09 → 18:2311:3848 min11:380 min12 Sep
London01:09 → 23:2312:3248 min12:320 min12 Sep
Durban02:09 → 00:2311:2948 min11:280 min12 Sep
Dubai04:09 → 02:2311:5148 min11:510 min12 Sep
Delhi05:39 → 03:5311:5348 min11:530 min12 Sep
Kolkata05:39 → 03:5311:0948 min11:090 min12 Sep
Singapore08:09 → 06:2312:3748 min12:370 min12 Sep
Sydney10:09 → 08:2311:2848 min11:280 min12 Sep
Suva12:09 → 10:2311:3918 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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