Ruling · Vāmana Jayantī · 2051

Sunday 17 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 410 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 17 September

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:49  12:37 madhyāhna ends
11:0111:2511:4912:1312:3713:0113:25

48 of 48 minutes covered

Midday of Monday 18 September

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:48  12:36 madhyāhna ends
11:0011:2411:4812:1212:3613:0013:24

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 04:59 on Sun 17 Sep to 03:06 on Mon 18 Sep.

    2051-09-16T20:58:55Z → 2051-09-17T19:05:37Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 17th, 11:48–12:36 on the 18th.

    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 17th and 0 of 48 on the 18th.

    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 24578 s

  5. 05

    Ruling

    Vāmana Jayantī, Baoding, 2051: Sunday 17 September.

    confidence: determinate

Say it like this

In Baoding, Vāmana Jayantī 2051 falls on Sunday 17 September. Dvādaśī runs from 04:59 on Sun 17 Sep to 03:06 on Mon 18 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2051/vamana-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 17 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 17 Sep
compat-drikpanchangComparison profileSun 17 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 16thCoveredMadhyāhna 17thCoveredRuled
Los Angeles13:59 → 12:0612:240 min12:230 min17 Sep
Chicago15:59 → 14:0612:210 min12:2148 min17 Sep
Jersey City16:59 → 15:0612:270 min12:2648 min17 Sep
Port of Spain16:59 → 15:0611:370 min11:3748 min17 Sep
London21:59 → 20:0612:310 min12:3148 min17 Sep
Durban22:59 → 21:0611:270 min11:2748 min17 Sep
Dubai00:59 → 23:0611:500 min11:4948 min17 Sep
Delhi02:29 → 00:3611:520 min11:5248 min17 Sep
Kolkata02:29 → 00:3611:070 min11:0748 min17 Sep
Singapore04:59 → 03:0612:360 min12:3548 min17 Sep
Sydney06:59 → 05:0611:270 min11:2648 min17 Sep
Suva08:59 → 07:0611:380 min11:3748 min17 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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