Ruling · Vāmana Jayantī · 2077

Tuesday 31 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 38 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 30 August

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:55  12:43 madhyāhna ends
Dvādaśī begins 13:27:03
11:0711:3111:5512:1912:4313:0713:31

0 of 48 minutes covered

Midday of Tuesday 31 August

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

madhyāhna begins 11:54  12:42 madhyāhna ends
Dvādaśī ends 11:16:40
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 13:27 on Mon 30 Aug to 11:17 on Tue 31 Aug.

    2077-08-30T05:27:04Z → 2077-08-31T03:16:40Z

  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 2257 s

  5. 05

    Ruling

    Vāmana Jayantī, Baoding, 2077: Tuesday 31 August.

    confidence: determinate

Say it like this

In Baoding, Vāmana Jayantī 2077 falls on Tuesday 31 August. Dvādaśī runs from 13:27 on Mon 30 Aug to 11:17 on Tue 31 Aug, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/2077/vamana-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 31 Aug
Ahargaṇa, classicalDisc centre, no refractionTue 31 Aug
compat-drikpanchangComparison profileTue 31 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 Angeles22:27 → 20:1712:2948 min12:290 min30 Aug
Chicago00:27 → 22:1712:2748 min12:270 min30 Aug
Jersey City01:27 → 23:1712:3348 min12:320 min30 Aug
Port of Spain01:27 → 23:1711:4348 min11:420 min30 Aug
London06:27 → 04:1712:3748 min12:360 min30 Aug
Durban07:27 → 05:1711:3348 min11:320 min30 Aug
Dubai09:27 → 07:1711:5548 min11:550 min30 Aug
Delhi10:57 → 08:4711:5848 min11:570 min30 Aug
Kolkata10:57 → 08:4711:1348 min11:130 min30 Aug
Singapore13:27 → 11:1712:412 min12:410 min30 Aug
Sydney15:27 → 13:1711:320 min11:3248 min31 Aug
Suva17:27 → 15:1711:430 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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