Ruling · Rudra Vrata · 1937

Sunday 5 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 299 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 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

Midday of Monday 6 September

Pratipadā is absent from madhyāhna. Not taken.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

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 06:53 on Sun 5 Sep to 06:25 on Mon 6 Sep.

    1937-09-04T22:53:26Z → 1937-09-05T22:24:57Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 5th, 11:52–12:40 on the 6th.

    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 5th and 0 of 48 on the 6th.

    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 17954 s

  5. 05

    Ruling

    Rudra Vrata, Baoding, 1937: Sunday 5 September.

    confidence: determinate

Say it like this

In Baoding, Rudra Vrata 1937 falls on Sunday 5 September. Pratipadā runs from 06:53 on Sun 5 Sep to 06:25 on Mon 6 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1937/rudra-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 5 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 5 Sep
compat-drikpanchangComparison profileSun 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 Angeles14:53 → 14:2511:280 min11:2748 min5 Sep
Chicago17:53 → 17:2512:250 min12:2548 min5 Sep
Jersey City18:53 → 18:2512:310 min12:3148 min5 Sep
Port of Spain18:53 → 18:2511:410 min11:4148 min5 Sep
London23:53 → 23:2512:350 min12:3548 min5 Sep
Durban00:53 → 00:2511:310 min11:3148 min5 Sep
Dubai02:53 → 02:2511:540 min11:5348 min5 Sep
Delhi04:23 → 03:5511:560 min11:5648 min5 Sep
Kolkata04:23 → 03:5511:120 min11:1148 min5 Sep
Singapore06:13 → 05:4512:000 min11:5948 min5 Sep
Sydney08:53 → 08:2511:310 min11:3048 min5 Sep
Suva10:53 → 10:2511:420 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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