Ruling · Vāmana Jayantī · 2039

Tuesday 30 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 Tuesday 30 August

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:55  12:43 madhyāhna ends
Dvādaśī begins 11:27:44
11:0711:3111:5512:1912:4313:0713:31

48 of 48 minutes covered

Midday of Wednesday 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

Dvādaśī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 11:28 on Tue 30 Aug to 09:10 on Wed 31 Aug.

    2039-08-30T03:27:45Z → 2039-08-31T01:10:21Z

  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 48 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

    Only one midday qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 1614 s

  5. 05

    Ruling

    Vāmana Jayantī, Baoding, 2039: Tuesday 30 August.

    confidence: determinate

Say it like this

In Baoding, Vāmana Jayantī 2039 falls on Tuesday 30 August. Dvādaśī runs from 11:28 on Tue 30 Aug to 09:10 on Wed 31 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2039/vamana-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 30 Aug
Ahargaṇa, classicalDisc centre, no refractionTue 30 Aug
compat-drikpanchangComparison profileTue 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 Angeles20:28 → 18:1012:2948 min12:290 min30 Aug
Chicago22:28 → 20:1012:2748 min12:270 min30 Aug
Jersey City23:28 → 21:1012:3348 min12:320 min30 Aug
Port of Spain23:28 → 21:1011:4348 min11:420 min30 Aug
London04:28 → 02:1012:3748 min12:360 min30 Aug
Durban05:28 → 03:1011:3348 min11:330 min30 Aug
Dubai07:28 → 05:1011:5548 min11:550 min30 Aug
Delhi08:58 → 06:4011:5848 min11:570 min30 Aug
Kolkata08:58 → 06:4011:1348 min11:130 min30 Aug
Singapore11:28 → 09:1012:4148 min12:410 min30 Aug
Sydney13:28 → 11:1011:320 min11:320 min31 Aug
Suva15:28 → 13:1011:430 min11:4348 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

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