Ruling · Vāmana Jayantī · 2006

Tuesday 5 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 20 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 Monday 4 September

Dvādaśī 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

Midday of Tuesday 5 September

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:53  12:41 madhyāhna ends
Dvādaśī ends 13:00:44
11:0511:2911:5312:1712:4113:0513:29

48 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 15:36 on Mon 4 Sep to 13:01 on Tue 5 Sep.

    2006-09-04T07:35:45Z → 2006-09-05T05:00:44Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 4th, 11:53–12:41 on the 5th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 4th and 48 of 48 on the 5th.

    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: unstated → only-day · margin 1205 s

  5. 05

    Ruling

    Vāmana Jayantī, Baoding, 2006: Tuesday 5 September.

    confidence: determinate

Say it like this

In Baoding, Vāmana Jayantī 2006 falls on Tuesday 5 September. Dvādaśī runs from 15:36 on Mon 4 Sep to 13:01 on Tue 5 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2006/vamana-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 5 Sep
Ahargaṇa, classicalDisc centre, no refractionTue 5 Sep
compat-drikpanchangComparison profileTue 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/vamana-jayanti · ruleset 2026.3-draft

Month
Bhādrapada, amānta
Pakṣa · aṅga
Śukla · Dvādaśī
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 103

“S 12 Visnuparivartanotsava, Sakrotthana (in any of the naksatras U. Asadha, Sravana & Dhanistha), Kalki dvadasi, Sravana dvadasi (when combined with naksatra Sravana), Vamana jayanti (madhyahna vyapini).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceDvādaśīMadhyāhna 4thCoveredMadhyāhna 5thCoveredRuled
Los Angeles00:36 → 22:0112:2848 min12:270 min4 Sep
Chicago02:36 → 00:0112:2548 min12:250 min4 Sep
Jersey City03:36 → 01:0112:3148 min12:310 min4 Sep
Port of Spain03:36 → 01:0111:4148 min11:410 min4 Sep
London08:36 → 06:0112:3548 min12:350 min4 Sep
Durban09:36 → 07:0111:3148 min11:310 min4 Sep
Dubai11:36 → 09:0111:5448 min11:530 min4 Sep
Delhi13:06 → 10:3111:560 min11:560 min5 Sep
Kolkata13:06 → 10:3111:120 min11:110 min5 Sep
Singapore15:36 → 13:0112:400 min12:3921 min5 Sep
Sydney17:36 → 15:0111:310 min11:3048 min5 Sep
Suva19:36 → 17:0111:420 min11:4148 min5 Sep
Profile · tradition
pac-rp@2026.1 · smarta
Rule
vamana-jayanti@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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