Ruling · Vivasvat Saptamī · 1986

Monday 14 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 239 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 13 July

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 13:00  13:48 madhyāhna ends
12:1212:3613:0013:2413:4814:1214:36

0 of 48 minutes covered

Midday of Monday 14 July

Taken. The only midday Saptamī reaches.

madhyāhna begins 13:00  13:48 madhyāhna ends
12:1212:3613:0013:2413:4814:1214:36

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 18:35 on Sun 13 Jul to 17:46 on Mon 14 Jul.

    1986-07-13T09:35:06Z → 1986-07-14T08:46:30Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 13:00–13:48 on the 13th, 13:00–13:48 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 0 of 48 minutes on the 13th and 48 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 14326 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 1986: Monday 14 July.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 1986 falls on Monday 14 July. Saptamī runs from 18:35 on Sun 13 Jul to 17:46 on Mon 14 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1986/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 14 Jul
Ahargaṇa, classicalDisc centre, no refractionMon 14 Jul
compat-drikpanchangComparison profileMon 14 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 Angeles02:35 → 01:4612:3548 min12:350 min13 Jul
Chicago04:35 → 03:4612:3248 min12:320 min13 Jul
Jersey City05:35 → 04:4612:3848 min12:380 min13 Jul
Port of Spain05:35 → 04:4611:4848 min11:480 min13 Jul
London10:35 → 09:4612:4248 min12:420 min13 Jul
Durban11:35 → 10:4611:3848 min11:380 min13 Jul
Dubai13:35 → 12:4612:000 min12:0046 min14 Jul
Delhi15:05 → 14:1612:030 min12:0348 min14 Jul
Kolkata15:05 → 14:1611:180 min11:1848 min14 Jul
Singapore17:35 → 16:4612:460 min12:4648 min14 Jul
Sydney19:35 → 18:4611:370 min11:3748 min14 Jul
Suva21:35 → 20:4611:480 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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