Ruling · Vivasvat Saptamī · 1964

Wednesday 15 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 281 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 15 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 16 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 06:57 on Wed 15 Jul to 07:19 on Thu 16 Jul.

    1964-07-14T22:56:41Z → 1964-07-15T23:18:38Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 15th, 12:00–12:48 on the 16th.

    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 15th and 0 of 48 on the 16th.

    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 16876 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 1964: Wednesday 15 July.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 1964 falls on Wednesday 15 July. Saptamī runs from 06:57 on Wed 15 Jul to 07:19 on Thu 16 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1964/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 15 Jul
Ahargaṇa, classicalDisc centre, no refractionWed 15 Jul
compat-drikpanchangComparison profileWed 15 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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles15:57 → 16:1912:350 min12:3548 min15 Jul
Chicago17:57 → 18:1912:320 min12:3248 min15 Jul
Jersey City18:57 → 19:1912:380 min12:3848 min15 Jul
Port of Spain18:57 → 19:1911:480 min11:4848 min15 Jul
London23:57 → 00:1912:420 min12:4248 min15 Jul
Durban00:57 → 01:1911:380 min11:3848 min15 Jul
Dubai02:57 → 03:1912:000 min12:0148 min15 Jul
Delhi04:27 → 04:4912:030 min12:0348 min15 Jul
Kolkata04:27 → 04:4911:180 min11:1848 min15 Jul
Singapore06:27 → 06:4912:160 min12:1648 min15 Jul
Sydney08:57 → 09:1911:370 min11:3748 min15 Jul
Suva10:57 → 11:1911:480 min11:4848 min15 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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