Ruling · Vāmana Jayantī · 2007

Monday 24 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 11 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 23 September

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:46  12:34 madhyāhna ends
10:5811:2211:4612:1012:3412:5813:22

0 of 48 minutes covered

Midday of Monday 24 September

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:46  12:34 madhyāhna ends
Dvādaśī ends 11:57:10
10:5811:2211:4612:1012:3412:5813:22

11 of 48 minutes covered, the first 11

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 13:29 on Sun 23 Sep to 11:57 on Mon 24 Sep.

    2007-09-23T05:29:07Z → 2007-09-24T03:57:11Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:46–12:34 on the 23rd, 11:46–12:34 on the 24th.

    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 23rd and 11 of 48 on the 24th.

    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 666 s

  5. 05

    Ruling

    Vāmana Jayantī, Baoding, 2007: Monday 24 September.

    confidence: determinate

Say it like this

In Baoding, Vāmana Jayantī 2007 falls on Monday 24 September. Dvādaśī runs from 13:29 on Sun 23 Sep to 11:57 on Mon 24 Sep and covers 11 of 48 minutes of madhyāhna that midday.

ahargana.org/baoding/festivals/2007/vamana-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 24 Sep
Ahargaṇa, classicalDisc centre, no refractionMon 24 Sep
compat-drikpanchangComparison profileMon 24 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 23rdCoveredMadhyāhna 24thCoveredRuled
Los Angeles22:29 → 20:5712:2148 min12:210 min23 Sep
Chicago00:29 → 22:5712:1948 min12:180 min23 Sep
Jersey City01:29 → 23:5712:2448 min12:240 min23 Sep
Port of Spain01:29 → 23:5711:3448 min11:340 min23 Sep
London06:29 → 04:5712:2848 min12:280 min23 Sep
Durban07:29 → 05:5711:2548 min11:240 min23 Sep
Dubai09:29 → 07:5711:4748 min11:470 min23 Sep
Delhi10:59 → 09:2711:4948 min11:490 min23 Sep
Kolkata10:59 → 09:2711:0548 min11:050 min23 Sep
Singapore13:29 → 11:5712:330 min12:330 min24 Sep
Sydney15:29 → 13:5711:240 min11:2448 min24 Sep
Suva17:29 → 15:5711:350 min11:3548 min24 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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