Ruling · Rudra Vrata · 1907

Sunday 8 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 374 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 8 September

Taken. The only midday Pratipadā reaches.

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

48 of 48 minutes covered

Midday of Monday 9 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 05:04 on Sun 8 Sep to 05:38 on Mon 9 Sep.

    1907-09-07T21:03:41Z → 1907-09-08T21:37:49Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 8th, 11:52–12:40 on the 9th.

    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 8th and 0 of 48 on the 9th.

    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 22424 s

  5. 05

    Ruling

    Rudra Vrata, Baoding, 1907: Sunday 8 September.

    confidence: determinate

Say it like this

In Baoding, Rudra Vrata 1907 falls on Sunday 8 September. Pratipadā runs from 05:04 on Sun 8 Sep to 05:38 on Mon 9 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1907/rudra-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 8 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 8 Sep
compat-drikpanchangComparison profileSun 8 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 7thCoveredMadhyāhna 8thCoveredRuled
Los Angeles13:04 → 13:3811:270 min11:2748 min8 Sep
Chicago15:04 → 15:3811:240 min11:2448 min8 Sep
Jersey City16:04 → 16:3811:300 min11:3048 min8 Sep
Port of Spain17:04 → 17:3811:400 min11:4048 min8 Sep
London21:04 → 21:3811:340 min11:3448 min8 Sep
Durban23:04 → 23:3811:300 min11:3048 min8 Sep
Dubai00:45 → 01:1911:340 min11:3448 min8 Sep
Delhi02:34 → 03:0811:550 min11:5548 min8 Sep
Kolkata02:34 → 03:0811:110 min11:1048 min8 Sep
Singapore04:04 → 04:3811:390 min11:3948 min8 Sep
Sydney07:04 → 07:3811:300 min11:3048 min8 Sep
Suva08:59 → 09:3311:360 min11:3648 min8 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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