Ruling · Vivasvat Saptamī · 2009

Sunday 28 June

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 163 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 Sunday 28 June

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

48 of 48 minutes covered

Midday of Monday 29 June

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:58  12:46 madhyāhna ends
11:1011:3411:5812:2212:4613:1013:34

0 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 09:14 on Sun 28 Jun to 07:54 on Mon 29 Jun.

    2009-06-28T01:14:24Z → 2009-06-28T23:53:46Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 28th, 11:58–12:46 on the 29th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 28th and 0 of 48 on the 29th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

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

    priority: purvaviddha → only-day · margin 9776 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 2009: Sunday 28 June.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 2009 falls on Sunday 28 June. Saptamī runs from 09:14 on Sun 28 Jun to 07:54 on Mon 29 Jun and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2009/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 28 Jun
Ahargaṇa, classicalDisc centre, no refractionSun 28 Jun
compat-drikpanchangComparison profileSun 28 Jun
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/vivasvat-saptami · ruleset 2026.3-draft

Month
Āṣāḍha, amānta
Pakṣa · aṅga
Śukla · Saptamī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 102

“S 7 Vivasvat saptami (purvaviddha).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceSaptamīMadhyāhna 28thCoveredMadhyāhna 29thCoveredRuled
Los Angeles18:14 → 16:5412:3248 min12:320 min28 Jun
Chicago20:14 → 18:5412:3048 min12:300 min28 Jun
Jersey City21:14 → 19:5412:3648 min12:360 min28 Jun
Port of Spain21:14 → 19:5411:4548 min11:460 min28 Jun
London02:14 → 00:5412:4048 min12:400 min28 Jun
Durban03:14 → 01:5411:3548 min11:350 min28 Jun
Dubai05:14 → 03:5411:5848 min11:580 min28 Jun
Delhi06:44 → 05:2412:0048 min12:000 min28 Jun
Kolkata06:44 → 05:2411:1648 min11:160 min28 Jun
Singapore09:14 → 07:5412:4448 min12:440 min28 Jun
Sydney11:14 → 09:5411:3448 min11:350 min28 Jun
Suva13:14 → 11:5411:460 min11:468 min29 Jun
Profile · tradition
pac-rp@2026.1 · smarta
Rule
vivasvat-saptami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

About Ahargaṇa