Ruling · Rudra Vrata · 2016

Friday 2 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 261 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 Thursday 1 September

Pratipadā is absent from madhyāhna. Not taken.

madhyāhna begins 11:54  12:42 madhyāhna ends
11:0611:3011:5412:1812:4213:0613:30

0 of 48 minutes covered

Midday of Friday 2 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 17:03 on Thu 1 Sep to 18:02 on Fri 2 Sep.

    2016-09-01T09:03:06Z → 2016-09-02T10:02:26Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 1st, 11:53–12:41 on the 2nd.

    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 1st and 48 of 48 on the 2nd.

    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 15680 s

  5. 05

    Ruling

    Rudra Vrata, Baoding, 2016: Friday 2 September.

    confidence: determinate

Say it like this

In Baoding, Rudra Vrata 2016 falls on Friday 2 September. Pratipadā runs from 17:03 on Thu 1 Sep to 18:02 on Fri 2 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2016/rudra-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 2 Sep
Ahargaṇa, classicalDisc centre, no refractionFri 2 Sep
compat-drikpanchangComparison profileFri 2 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 1stCoveredMadhyāhna 2ndCoveredRuled
Los Angeles02:03 → 03:0212:2848 min12:280 min1 Sep
Chicago04:03 → 05:0212:2648 min12:260 min1 Sep
Jersey City05:03 → 06:0212:3248 min12:310 min1 Sep
Port of Spain05:03 → 06:0211:4248 min11:410 min1 Sep
London10:03 → 11:0212:3648 min12:350 min1 Sep
Durban11:03 → 12:0211:3248 min11:3231 min1 Sep
Dubai13:03 → 14:0211:540 min11:5448 min2 Sep
Delhi14:33 → 15:3211:570 min11:5648 min2 Sep
Kolkata14:33 → 15:3211:120 min11:1248 min2 Sep
Singapore17:03 → 18:0212:410 min12:4048 min2 Sep
Sydney19:03 → 20:0211:310 min11:3148 min2 Sep
Suva21:03 → 22:0211:420 min11:4248 min2 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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