Ruling · Vāmana Jayantī · 2098

Sunday 7 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 208 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 Saturday 6 September

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:53  12:41 madhyāhna ends
11:0511:2911:5312:1712:4113:0513:29

0 of 48 minutes covered

Midday of Sunday 7 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

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 16:09 on Sat 6 Sep to 18:34 on Sun 7 Sep.

    2098-09-06T08:09:00Z → 2098-09-07T10:34:10Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 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 0 of 48 minutes on the 6th and 48 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 12506 s

  5. 05

    Ruling

    Vāmana Jayantī, Baoding, 2098: Sunday 7 September.

    confidence: determinate

Say it like this

In Baoding, Vāmana Jayantī 2098 falls on Sunday 7 September. Dvādaśī runs from 16:09 on Sat 6 Sep to 18:34 on Sun 7 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2098/vamana-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 7 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 7 Sep
compat-drikpanchangComparison profileSun 7 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 6thCoveredMadhyāhna 7thCoveredRuled
Los Angeles01:09 → 03:3412:2748 min12:270 min6 Sep
Chicago03:09 → 05:3412:2548 min12:240 min6 Sep
Jersey City04:09 → 06:3412:3148 min12:300 min6 Sep
Port of Spain04:09 → 06:3411:4148 min11:400 min6 Sep
London09:09 → 11:3412:3548 min12:340 min6 Sep
Durban10:09 → 12:3411:3148 min11:3048 min6 Sep
Dubai12:09 → 14:3411:5332 min11:5348 min7 Sep
Delhi13:39 → 16:0411:560 min11:5548 min7 Sep
Kolkata13:39 → 16:0411:110 min11:1148 min7 Sep
Singapore16:09 → 18:3412:390 min12:3948 min7 Sep
Sydney18:09 → 20:3411:300 min11:3048 min7 Sep
Suva20:09 → 22:3411:410 min11:4148 min7 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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