Ruling · Vāmana Jayantī · 2000

Sunday 10 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 501 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 9 September

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

0 of 48 minutes covered

Midday of Sunday 10 September

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

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 21:01 on Sat 9 Sep to 23:20 on Sun 10 Sep.

    2000-09-09T13:00:36Z → 2000-09-10T15:20:09Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 9th, 11:51–12:39 on the 10th.

    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 9th and 48 of 48 on the 10th.

    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 30089 s

  5. 05

    Ruling

    Vāmana Jayantī, Baoding, 2000: Sunday 10 September.

    confidence: determinate

Say it like this

In Baoding, Vāmana Jayantī 2000 falls on Sunday 10 September. Dvādaśī runs from 21:01 on Sat 9 Sep to 23:20 on Sun 10 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2000/vamana-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 10 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 10 Sep
compat-drikpanchangComparison profileSun 10 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 9thCoveredMadhyāhna 10thCoveredRuled
Los Angeles06:01 → 08:2012:2648 min12:250 min9 Sep
Chicago08:01 → 10:2012:2348 min12:230 min9 Sep
Jersey City09:01 → 11:2012:2948 min12:290 min9 Sep
Port of Spain09:01 → 11:2011:3948 min11:390 min9 Sep
London14:01 → 16:2012:330 min12:3348 min10 Sep
Durban15:01 → 17:2011:290 min11:2948 min10 Sep
Dubai17:01 → 19:2011:520 min11:5148 min10 Sep
Delhi18:31 → 20:5011:540 min11:5448 min10 Sep
Kolkata18:31 → 20:5011:100 min11:0948 min10 Sep
Singapore21:01 → 23:2012:380 min12:3848 min10 Sep
Sydney00:01 → 02:2012:290 min12:2848 min10 Sep
Suva01:01 → 03:2011:400 min11:3948 min10 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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