Ruling · Vāmana Jayantī · 2004

Saturday 25 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 469 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 Saturday 25 September

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:45  12:33 madhyāhna ends
10:5711:2111:4512:0912:3312:5713:21

48 of 48 minutes covered

Midday of Sunday 26 September

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:45  12:33 madhyāhna ends
10:5711:2111:4512:0912:3312:5713:21

0 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 03:56 on Sat 25 Sep to 01:48 on Sun 26 Sep.

    2004-09-24T19:56:01Z → 2004-09-25T17:47:39Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 25th, 11:45–12:33 on the 26th.

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

  3. 03

    Rule

    Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 25th and 0 of 48 on the 26th.

    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 28169 s

  5. 05

    Ruling

    Vāmana Jayantī, Baoding, 2004: Saturday 25 September.

    confidence: determinate

Say it like this

In Baoding, Vāmana Jayantī 2004 falls on Saturday 25 September. Dvādaśī runs from 03:56 on Sat 25 Sep to 01:48 on Sun 26 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2004/vamana-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 25 Sep
Ahargaṇa, classicalDisc centre, no refractionSat 25 Sep
compat-drikpanchangComparison profileSat 25 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 24thCoveredMadhyāhna 25thCoveredRuled
Los Angeles12:56 → 10:4812:2012 min12:200 min24 Sep
Chicago14:56 → 12:4812:180 min12:1830 min25 Sep
Jersey City15:56 → 13:4812:240 min12:2348 min25 Sep
Port of Spain15:56 → 13:4811:340 min11:3348 min25 Sep
London20:56 → 18:4812:280 min12:2848 min25 Sep
Durban21:56 → 19:4811:240 min11:2448 min25 Sep
Dubai23:56 → 21:4811:470 min11:4648 min25 Sep
Delhi01:26 → 23:1811:490 min11:4848 min25 Sep
Kolkata01:26 → 23:1811:040 min11:0448 min25 Sep
Singapore03:56 → 01:4812:330 min12:3248 min25 Sep
Sydney05:56 → 03:4811:230 min11:2348 min25 Sep
Suva07:56 → 05:4811:340 min11:3448 min25 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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