Ruling · Vivasvat Saptamī · 2015

Thursday 23 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 468 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 22 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

Midday of Thursday 23 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

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 20:36 on Wed 22 Jul to 23:00 on Thu 23 Jul.

    2015-07-22T12:36:05Z → 2015-07-23T15:00:29Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 22nd, 12:00–12:48 on the 23rd.

    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 22nd and 48 of 48 on the 23rd.

    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 28064 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 2015: Thursday 23 July.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 2015 falls on Thursday 23 July. Saptamī runs from 20:36 on Wed 22 Jul to 23:00 on Thu 23 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2015/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 23 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 23 Jul
compat-drikpanchangComparison profileThu 23 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 22ndCoveredMadhyāhna 23rdCoveredRuled
Los Angeles05:36 → 08:0012:3548 min12:350 min22 Jul
Chicago07:36 → 10:0012:3348 min12:330 min22 Jul
Jersey City08:36 → 11:0012:3948 min12:390 min22 Jul
Port of Spain08:36 → 11:0011:4848 min11:490 min22 Jul
London13:36 → 16:0012:430 min12:4348 min23 Jul
Durban14:36 → 17:0011:380 min11:3848 min23 Jul
Dubai16:36 → 19:0012:010 min12:0148 min23 Jul
Delhi18:06 → 20:3012:030 min12:0348 min23 Jul
Kolkata18:06 → 20:3011:190 min11:1948 min23 Jul
Singapore20:36 → 23:0012:470 min12:4748 min23 Jul
Sydney22:36 → 01:0011:380 min11:3848 min23 Jul
Suva00:36 → 03:0011:490 min11:4948 min23 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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