Ruling · Vāmana Jayantī · 1979

Monday 3 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 189 minutes.

Decide it for

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 3 September

Taken. The only midday Dvādaśī reaches.

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

48 of 48 minutes covered

Midday of Tuesday 4 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

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

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 08:44 on Mon 3 Sep to 05:47 on Tue 4 Sep.

    1979-09-03T00:44:00Z → 1979-09-03T21:46:41Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 3rd, 11:53–12:41 on the 4th.

    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 3rd and 0 of 48 on the 4th.

    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 11366 s

  5. 05

    Ruling

    Vāmana Jayantī, Baoding, 1979: Monday 3 September.

    confidence: determinate

Say it like this

In Baoding, Vāmana Jayantī 1979 falls on Monday 3 September. Dvādaśī runs from 08:44 on Mon 3 Sep to 05:47 on Tue 4 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1979/vamana-jayanti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 3 Sep
Ahargaṇa, classicalDisc centre, no refractionMon 3 Sep
compat-drikpanchangComparison profileMon 3 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 3rdCoveredMadhyāhna 4thCoveredRuled
Los Angeles17:44 → 14:4712:2848 min12:280 min3 Sep
Chicago19:44 → 16:4712:2648 min12:250 min3 Sep
Jersey City20:44 → 17:4712:3148 min12:310 min3 Sep
Port of Spain20:44 → 17:4711:4148 min11:410 min3 Sep
London01:44 → 22:4712:3548 min12:350 min3 Sep
Durban02:44 → 23:4711:3248 min11:310 min3 Sep
Dubai04:44 → 01:4711:5448 min11:540 min3 Sep
Delhi06:14 → 03:1711:5648 min11:560 min3 Sep
Kolkata06:14 → 03:1711:1248 min11:120 min3 Sep
Singapore08:14 → 05:1712:1048 min12:100 min3 Sep
Sydney10:44 → 07:4711:3148 min11:310 min3 Sep
Suva12:44 → 09:4711:420 min11:420 min4 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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