Ruling · Rudra Vrata · 2069

Monday 16 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 419 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 15 September

Pratipadā is absent from madhyāhna. Not taken.

madhyāhna begins 11:49  12:37 madhyāhna ends
11:0111:2511:4912:1312:3713:0113:25

0 of 48 minutes covered

Midday of Monday 16 September

Taken. The only midday Pratipadā reaches.

madhyāhna begins 11:49  12:37 madhyāhna ends
11:0111:2511:4912:1312:3713:0113:25

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 19:36 on Sun 15 Sep to 21:16 on Mon 16 Sep.

    2069-09-15T11:36:16Z → 2069-09-16T13:15:34Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 15th, 11:49–12:37 on the 16th.

    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 15th and 48 of 48 on the 16th.

    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 25148 s

  5. 05

    Ruling

    Rudra Vrata, Baoding, 2069: Monday 16 September.

    confidence: determinate

Say it like this

In Baoding, Rudra Vrata 2069 falls on Monday 16 September. Pratipadā runs from 19:36 on Sun 15 Sep to 21:16 on Mon 16 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2069/rudra-vrata · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 16 Sep
Ahargaṇa, classicalDisc centre, no refractionMon 16 Sep
compat-drikpanchangComparison profileMon 16 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 15thCoveredMadhyāhna 16thCoveredRuled
Los Angeles04:36 → 06:1612:2448 min12:230 min15 Sep
Chicago06:36 → 08:1612:2148 min12:210 min15 Sep
Jersey City07:36 → 09:1612:2748 min12:270 min15 Sep
Port of Spain07:36 → 09:1611:3748 min11:370 min15 Sep
London12:36 → 14:1612:3143 min12:3148 min15 Sep
Durban13:36 → 15:1611:270 min11:2748 min16 Sep
Dubai15:36 → 17:1611:500 min11:4948 min16 Sep
Delhi17:06 → 18:4611:520 min11:5248 min16 Sep
Kolkata17:06 → 18:4611:080 min11:0748 min16 Sep
Singapore19:36 → 21:1612:360 min12:3648 min16 Sep
Sydney21:36 → 23:1611:270 min11:2648 min16 Sep
Suva23:36 → 01:1611:380 min11:3748 min16 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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