Ruling · Vivasvat Saptamī · 1919

Friday 4 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 505 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 3 July

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:58  13:46 madhyāhna ends
12:1012:3412:5813:2213:4614:1014:34

0 of 48 minutes covered

Midday of Friday 4 July

Taken. The only midday Saptamī reaches.

madhyāhna begins 12:58  13:46 madhyāhna ends
12:1012:3412:5813:2213:4614:1014:34

48 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 22:11 on Thu 3 Jul to 23:25 on Fri 4 Jul.

    1919-07-03T13:10:59Z → 1919-07-04T14:25:00Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:58–13:46 on the 3rd, 12:58–13:46 on the 4th.

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

  3. 03

    Rule

    Saptamī must be present during madhyāhna. It covers 0 of 48 minutes on the 3rd and 48 of 48 on the 4th.

    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 30310 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 1919: Friday 4 July.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 1919 falls on Friday 4 July. Saptamī runs from 22:11 on Thu 3 Jul to 23:25 on Fri 4 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1919/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 4 Jul
Ahargaṇa, classicalDisc centre, no refractionFri 4 Jul
compat-drikpanchangComparison profileFri 4 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 3rdCoveredMadhyāhna 4thCoveredRuled
Los Angeles06:11 → 07:2512:3348 min12:330 min3 Jul
Chicago08:11 → 09:2512:3048 min12:310 min3 Jul
Jersey City09:11 → 10:2512:3648 min12:360 min3 Jul
Port of Spain09:11 → 10:2511:4648 min11:460 min3 Jul
London14:11 → 15:2512:400 min12:4048 min4 Jul
Durban15:11 → 16:2511:360 min11:3648 min4 Jul
Dubai16:52 → 18:0611:400 min11:4048 min4 Jul
Delhi18:41 → 19:5512:010 min12:0148 min4 Jul
Kolkata18:41 → 19:5511:160 min11:1648 min4 Jul
Singapore20:11 → 21:2511:440 min11:4548 min4 Jul
Sydney23:11 → 00:2511:350 min11:3548 min4 Jul
Suva01:11 → 02:2511:460 min11:4648 min4 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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