Ruling · Rudra Vrata · 1978

Sunday 3 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 623 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 3 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

Midday of Monday 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

Pratipadā presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pratipadā runs from 00:09 on Sun 3 Sep to 01:30 on Mon 4 Sep.

    1978-09-02T16:08:54Z → 1978-09-03T17:30:27Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 3rd, 11:53–12:41 on the 4th.

    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 3rd and 0 of 48 on the 4th.

    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 37355 s

  5. 05

    Ruling

    Rudra Vrata, Baoding, 1978: Sunday 3 September.

    confidence: determinate

Say it like this

In Baoding, Rudra Vrata 1978 falls on Sunday 3 September. Pratipadā runs from 00:09 on Sun 3 Sep to 01:30 on Mon 4 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1978/rudra-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 3 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 3 Sep
compat-drikpanchangComparison profileSun 3 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 2ndCoveredMadhyāhna 3rdCoveredRuled
Los Angeles09:09 → 10:3012:2848 min12:280 min2 Sep
Chicago11:09 → 12:3012:2648 min12:265 min2 Sep
Jersey City12:09 → 13:3012:3248 min12:3148 min2 Sep
Port of Spain12:09 → 13:3011:4221 min11:4148 min2 Sep
London17:09 → 18:3012:360 min12:3548 min3 Sep
Durban18:09 → 19:3011:320 min11:3248 min3 Sep
Dubai20:09 → 21:3011:540 min11:5448 min3 Sep
Delhi21:39 → 23:0011:570 min11:5648 min3 Sep
Kolkata21:39 → 23:0011:120 min11:1248 min3 Sep
Singapore23:39 → 01:0012:100 min12:1048 min3 Sep
Sydney02:09 → 03:3011:310 min11:3148 min3 Sep
Suva04:09 → 05:3011:420 min11:4248 min3 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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