Ruling · Vāmana Jayantī · 1955

Wednesday 28 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 321 minutes.

Decide it for

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 28 September

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:45  12:33 madhyāhna ends
10:5711:2111:4512:0912:3312:5713:21

48 of 48 minutes covered

Midday of Thursday 29 September

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:44  12:32 madhyāhna ends
10:5611:2011:4412:0812:3212:5613:20

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 06:03 on Wed 28 Sep to 06:23 on Thu 29 Sep.

    1955-09-27T22:03:17Z → 1955-09-28T22:23:08Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:45–12:33 on the 28th, 11:44–12:32 on the 29th.

    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 28th and 0 of 48 on the 29th.

    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 19281 s

  5. 05

    Ruling

    Vāmana Jayantī, Baoding, 1955: Wednesday 28 September.

    confidence: determinate

Say it like this

In Baoding, Vāmana Jayantī 1955 falls on Wednesday 28 September. Dvādaśī runs from 06:03 on Wed 28 Sep to 06:23 on Thu 29 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1955/vamana-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 28 Sep
Ahargaṇa, classicalDisc centre, no refractionWed 28 Sep
compat-drikpanchangComparison profileWed 28 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 27thCoveredMadhyāhna 28thCoveredRuled
Los Angeles14:03 → 14:2311:200 min11:1948 min28 Sep
Chicago17:03 → 17:2312:170 min12:1748 min28 Sep
Jersey City18:03 → 18:2312:230 min12:2348 min28 Sep
Port of Spain18:03 → 18:2311:330 min11:3348 min28 Sep
London23:03 → 23:2312:270 min12:2748 min28 Sep
Durban00:03 → 00:2311:230 min11:2348 min28 Sep
Dubai02:03 → 02:2311:460 min11:4648 min28 Sep
Delhi03:33 → 03:5311:480 min11:4848 min28 Sep
Kolkata03:33 → 03:5311:040 min11:0348 min28 Sep
Singapore05:33 → 05:5312:020 min12:0248 min28 Sep
Sydney08:03 → 08:2311:230 min11:2248 min28 Sep
Suva10:03 → 10:2311:340 min11:3348 min28 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

About Ahargaṇa