Ruling · Vāmana Jayantī · 1984

Thursday 6 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 173 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 6 September

Taken. The only midday Dvādaśī reaches.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

48 of 48 minutes covered

Midday of Friday 7 September

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

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 07:34 on Thu 6 Sep to 08:59 on Fri 7 Sep.

    1984-09-05T23:34:17Z → 1984-09-07T00:59:04Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 6th, 11:52–12:40 on the 7th.

    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 6th and 0 of 48 on the 7th.

    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 10366 s

  5. 05

    Ruling

    Vāmana Jayantī, Baoding, 1984: Thursday 6 September.

    confidence: determinate

Say it like this

In Baoding, Vāmana Jayantī 1984 falls on Thursday 6 September. Dvādaśī runs from 07:34 on Thu 6 Sep to 08:59 on Fri 7 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1984/vamana-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 6 Sep
Ahargaṇa, classicalDisc centre, no refractionThu 6 Sep
compat-drikpanchangComparison profileThu 6 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 5thCoveredMadhyāhna 7thCoveredRuled
Los Angeles16:34 → 17:5912:270 min12:260 min6 Sep
Chicago18:34 → 19:5912:250 min12:240 min6 Sep
Jersey City19:34 → 20:5912:300 min12:300 min6 Sep
Port of Spain19:34 → 20:5911:410 min11:400 min6 Sep
London00:34 → 01:5912:350 min12:340 min6 Sep
Durban01:34 → 02:5911:310 min11:300 min6 Sep
Dubai03:34 → 04:5911:530 min11:530 min6 Sep
Delhi05:04 → 06:2911:560 min11:550 min6 Sep
Kolkata05:04 → 06:2911:110 min11:100 min6 Sep
Singapore07:34 → 08:5912:390 min12:390 min6 Sep
Sydney09:34 → 10:5911:300 min11:290 min6 Sep
Suva11:34 → 12:5911:410 min11:4048 min6 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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