Ruling · Vivasvat Saptamī · 2005

Wednesday 13 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 64 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 Wednesday 13 July

Taken. The only midday Saptamī reaches.

madhyāhna begins 12:00  12:48 madhyāhna ends
11:1211:3612:0012:2412:4813:1213:36

48 of 48 minutes covered

Midday of Thursday 14 July

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:00  12:48 madhyāhna ends
11:1211:3612:0012:2412:4813:1213:36

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 09:38 on Wed 13 Jul to 10:56 on Thu 14 Jul.

    2005-07-13T01:37:34Z → 2005-07-14T02:56:08Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 13th, 12:00–12:48 on the 14th.

    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 13th and 0 of 48 on the 14th.

    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 3820 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 2005: Wednesday 13 July.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 2005 falls on Wednesday 13 July. Saptamī runs from 09:38 on Wed 13 Jul to 10:56 on Thu 14 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2005/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 13 Jul
Ahargaṇa, classicalDisc centre, no refractionWed 13 Jul
compat-drikpanchangComparison profileWed 13 Jul
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 13thCoveredMadhyāhna 14thCoveredRuled
Los Angeles18:38 → 19:5612:3548 min12:350 min13 Jul
Chicago20:38 → 21:5612:3248 min12:320 min13 Jul
Jersey City21:38 → 22:5612:3848 min12:380 min13 Jul
Port of Spain21:38 → 22:5611:4848 min11:480 min13 Jul
London02:38 → 03:5612:4248 min12:420 min13 Jul
Durban03:38 → 04:5611:3848 min11:380 min13 Jul
Dubai05:38 → 06:5612:0048 min12:010 min13 Jul
Delhi07:08 → 08:2612:0348 min12:030 min13 Jul
Kolkata07:08 → 08:2611:1848 min11:180 min13 Jul
Singapore09:38 → 10:5612:4648 min12:460 min13 Jul
Sydney11:38 → 12:5611:3747 min11:3748 min13 Jul
Suva13:38 → 14:5611:480 min11:4848 min14 Jul
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

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