Ruling · Vāmana Jayantī · 1914

Tuesday 1 September

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 Monday 31 August

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:54  12:42 madhyāhna ends
11:0611:3011:5412:1812:4213:0613:30

0 of 48 minutes covered

Midday of Tuesday 1 September

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:54  12:42 madhyāhna ends
11:0611:3011:5412:1812:4213:0613:30

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 20:24 on Mon 31 Aug to 20:06 on Tue 1 Sep.

    1914-08-31T12:23:45Z → 1914-09-01T12:06:29Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 31st, 11:54–12:42 on the 1st.

    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 31st and 48 of 48 on the 1st.

    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 26665 s

  5. 05

    Ruling

    Vāmana Jayantī, Baoding, 1914: Tuesday 1 September.

    confidence: determinate

Say it like this

In Baoding, Vāmana Jayantī 1914 falls on Tuesday 1 September. Dvādaśī runs from 20:24 on Mon 31 Aug to 20:06 on Tue 1 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1914/vamana-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 1 Sep
Ahargaṇa, classicalDisc centre, no refractionTue 1 Sep
compat-drikpanchangComparison profileTue 1 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 31stCoveredMadhyāhna 1stCoveredRuled
Los Angeles04:24 → 04:0611:2948 min11:290 min31 Aug
Chicago06:24 → 06:0611:2748 min11:260 min31 Aug
Jersey City07:24 → 07:0611:3248 min11:320 min31 Aug
Port of Spain08:24 → 08:0611:4248 min11:420 min31 Aug
London12:24 → 12:0611:361 min11:3630 min1 Sep
Durban14:24 → 14:0611:330 min11:3248 min1 Sep
Dubai16:05 → 15:4711:360 min11:3648 min1 Sep
Delhi17:54 → 17:3611:570 min11:5748 min1 Sep
Kolkata17:54 → 17:3611:130 min11:1348 min1 Sep
Singapore19:24 → 19:0611:410 min11:4148 min1 Sep
Sydney22:24 → 22:0611:320 min11:3248 min1 Sep
Suva00:19 → 00:0111:380 min11:3848 min1 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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