Ruling · Vivasvat Saptamī · 1972

Monday 17 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 557 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 Monday 17 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 Tuesday 18 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 00:58 on Mon 17 Jul to 02:43 on Tue 18 Jul.

    1972-07-16T16:57:45Z → 1972-07-17T18:43:23Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 17th, 12:00–12:48 on the 18th.

    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 17th and 0 of 48 on the 18th.

    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 33402 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 1972: Monday 17 July.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 1972 falls on Monday 17 July. Saptamī runs from 00:58 on Mon 17 Jul to 02:43 on Tue 18 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1972/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 17 Jul
Ahargaṇa, classicalDisc centre, no refractionMon 17 Jul
compat-drikpanchangComparison profileMon 17 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 16thCoveredMadhyāhna 17thCoveredRuled
Los Angeles09:58 → 11:4312:3548 min12:350 min16 Jul
Chicago11:58 → 13:4312:3248 min12:3248 min16 Jul
Jersey City12:58 → 14:4312:3828 min12:3848 min16 Jul
Port of Spain12:58 → 14:4311:480 min11:4848 min17 Jul
London17:58 → 19:4312:420 min12:4248 min17 Jul
Durban18:58 → 20:4311:380 min11:3848 min17 Jul
Dubai20:58 → 22:4312:010 min12:0148 min17 Jul
Delhi22:28 → 00:1312:030 min12:0348 min17 Jul
Kolkata22:28 → 00:1311:180 min11:1948 min17 Jul
Singapore00:28 → 02:1312:170 min12:1748 min17 Jul
Sydney02:58 → 04:4311:370 min11:3748 min17 Jul
Suva04:58 → 06:4311:480 min11:4848 min17 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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