Ruling · Vāmana Jayantī · 1906

Friday 31 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 27 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 Thursday 30 August

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:55  12:43 madhyāhna ends
Dvādaśī begins 13:09:30
11:0711:3111:5512:1912:4313:0713:31

0 of 48 minutes covered

Midday of Friday 31 August

Taken. Dvādaśī reaches neither midday; the rule takes the second day.

madhyāhna begins 11:54  12:42 madhyāhna ends
Dvādaśī ends 11:19:29
11:0611:3011:5412:1812:4213:0613:30

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 13:10 on Thu 30 Aug to 11:19 on Fri 31 Aug.

    1906-08-30T05:09:30Z → 1906-08-31T03:19:29Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 30th, 11:54–12:42 on the 31st.

    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 30th and 0 of 48 on the 31st.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: unstated → second-day · margin 1609 s

  5. 05

    Ruling

    Vāmana Jayantī, Baoding, 1906: Friday 31 August.

    confidence: determinate

Say it like this

In Baoding, Vāmana Jayantī 1906 falls on Friday 31 August. Dvādaśī runs from 13:10 on Thu 30 Aug to 11:19 on Fri 31 Aug, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/1906/vamana-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 31 Aug
Ahargaṇa, classicalDisc centre, no refractionFri 31 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 30thCoveredMadhyāhna 31stCoveredRuled
Los Angeles21:10 → 19:1911:2948 min11:290 min30 Aug
Chicago23:10 → 21:1911:2748 min11:270 min30 Aug
Jersey City00:10 → 22:1911:3348 min11:320 min30 Aug
Port of Spain01:10 → 23:1911:4348 min11:420 min30 Aug
London05:10 → 03:1911:3748 min11:360 min30 Aug
Durban07:10 → 05:1911:3348 min11:330 min30 Aug
Dubai08:51 → 07:0011:3648 min11:360 min30 Aug
Delhi10:40 → 08:4911:5848 min11:570 min30 Aug
Kolkata10:40 → 08:4911:1348 min11:130 min30 Aug
Singapore12:10 → 10:1911:4120 min11:410 min30 Aug
Sydney15:10 → 13:1911:320 min11:3248 min31 Aug
Suva17:05 → 15:1411:380 min11:3848 min31 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

About Ahargaṇa