Ruling · Vāmana Jayantī · 2054

Sunday 13 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 580 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 13 September

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:50  12:38 madhyāhna ends
11:0211:2611:5012:1412:3813:0213:26

48 of 48 minutes covered

Midday of Monday 14 September

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:50  12:38 madhyāhna ends
11:0211:2611:5012:1412:3813:0213:26

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 23:36 on Sat 12 Sep to 02:10 on Mon 14 Sep.

    2054-09-12T15:36:20Z → 2054-09-13T18:09:50Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:50–12:38 on the 13th, 11:50–12:38 on the 14th.

    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 13th and 0 of 48 on the 14th.

    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 34782 s

  5. 05

    Ruling

    Vāmana Jayantī, Baoding, 2054: Sunday 13 September.

    confidence: determinate

Say it like this

In Baoding, Vāmana Jayantī 2054 falls on Sunday 13 September. Dvādaśī runs from 23:36 on Sat 12 Sep to 02:10 on Mon 14 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2054/vamana-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 13 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 13 Sep
compat-drikpanchangComparison profileSun 13 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles08:36 → 11:1012:2548 min12:250 min12 Sep
Chicago10:36 → 13:1012:2248 min12:2248 min12 Sep
Jersey City11:36 → 14:1012:2848 min12:2848 min12 Sep
Port of Spain11:36 → 14:1011:3848 min11:3848 min12 Sep
London16:36 → 19:1012:320 min12:3248 min13 Sep
Durban17:36 → 20:1011:280 min11:2848 min13 Sep
Dubai19:36 → 22:1011:510 min11:5148 min13 Sep
Delhi21:06 → 23:4011:530 min11:5348 min13 Sep
Kolkata21:06 → 23:4011:090 min11:0848 min13 Sep
Singapore23:36 → 02:1012:370 min12:3748 min13 Sep
Sydney01:36 → 04:1011:280 min11:2848 min13 Sep
Suva03:36 → 06:1011:390 min11:3948 min13 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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