Ruling · Vāmana Jayantī · 1900

Thursday 6 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 599 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 Thursday 6 September

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

48 of 48 minutes covered

Midday of Friday 7 September

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

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 01:58 on Thu 6 Sep to 23:33 on Thu 6 Sep.

    1900-09-05T17:53:12Z → 1900-09-06T15:28:18Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 6th, 11:57–12:45 on the 7th.

    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 6th and 0 of 48 on the 7th.

    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 35947 s

  5. 05

    Ruling

    Vāmana Jayantī, Baoding, 1900: Thursday 6 September.

    confidence: determinate

Say it like this

In Baoding, Vāmana Jayantī 1900 falls on Thursday 6 September. Dvādaśī runs from 01:58 on Thu 6 Sep to 23:33 on Thu 6 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1900/vamana-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 6 Sep
Ahargaṇa, classicalDisc centre, no refractionThu 6 Sep
compat-drikpanchangComparison profileThu 6 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 5thCoveredMadhyāhna 6thCoveredRuled
Los Angeles09:53 → 07:2811:2748 min11:270 min5 Sep
Chicago11:53 → 09:2811:2520 min11:250 min5 Sep
Jersey City12:53 → 10:2811:310 min11:300 min6 Sep
Port of Spain13:53 → 11:2811:410 min11:400 min6 Sep
London17:53 → 15:2811:350 min11:3448 min6 Sep
Durban19:23 → 16:5811:010 min11:0048 min6 Sep
Dubai21:34 → 19:0911:340 min11:3448 min6 Sep
Delhi23:14 → 20:4911:470 min11:4648 min6 Sep
Kolkata23:14 → 20:4911:020 min11:0248 min6 Sep
Singapore00:48 → 22:2311:340 min11:3448 min6 Sep
Sydney03:53 → 01:2811:300 min11:3048 min6 Sep
Suva05:48 → 03:2311:360 min11:3648 min6 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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