Ruling · Vāmana Jayantī · 2001

Thursday 30 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 444 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 Wednesday 29 August

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:55  12:43 madhyāhna ends
11:0711:3111:5512:1912:4313:0713:31

0 of 48 minutes covered

Midday of Thursday 30 August

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:55  12:43 madhyāhna ends
11:0711:3111:5512:1912:4313:0713:31

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 20:07 on Wed 29 Aug to 22:22 on Thu 30 Aug.

    2001-08-29T12:06:50Z → 2001-08-30T14:22:08Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 29th, 11:55–12:43 on the 30th.

    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 29th and 48 of 48 on the 30th.

    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 26641 s

  5. 05

    Ruling

    Vāmana Jayantī, Baoding, 2001: Thursday 30 August.

    confidence: determinate

Say it like this

In Baoding, Vāmana Jayantī 2001 falls on Thursday 30 August. Dvādaśī runs from 20:07 on Wed 29 Aug to 22:22 on Thu 30 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2001/vamana-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 30 Aug
Ahargaṇa, classicalDisc centre, no refractionThu 30 Aug
compat-drikpanchangComparison profileThu 30 Aug
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 29thCoveredMadhyāhna 30thCoveredRuled
Los Angeles05:07 → 07:2212:3048 min12:290 min29 Aug
Chicago07:07 → 09:2212:2748 min12:270 min29 Aug
Jersey City08:07 → 10:2212:3348 min12:320 min29 Aug
Port of Spain08:07 → 10:2211:4348 min11:430 min29 Aug
London13:07 → 15:2212:3718 min12:3748 min30 Aug
Durban14:07 → 16:2211:330 min11:3348 min30 Aug
Dubai16:07 → 18:2211:560 min11:5548 min30 Aug
Delhi17:37 → 19:5211:580 min11:5848 min30 Aug
Kolkata17:37 → 19:5211:130 min11:1348 min30 Aug
Singapore20:07 → 22:2212:420 min12:4148 min30 Aug
Sydney22:07 → 00:2211:320 min11:3248 min30 Aug
Suva00:07 → 02:2211:430 min11:4348 min30 Aug
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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