Ruling · Vivasvat Saptamī · 2097

Monday 15 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 608 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 15 July

Taken. The only midday Saptamī reaches.

madhyāhna begins 12:01  12:49 madhyāhna ends
11:1311:3712:0112:2512:4913:1313:37

48 of 48 minutes covered

Midday of Tuesday 16 July

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:01  12:49 madhyāhna ends
11:1311:3712:0112:2512:4913:1313:37

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 01:50 on Mon 15 Jul to 01:52 on Tue 16 Jul.

    2097-07-14T17:50:23Z → 2097-07-15T17:52:16Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:01–12:49 on the 15th, 12:01–12:49 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 36501 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 2097: Monday 15 July.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 2097 falls on Monday 15 July. Saptamī runs from 01:50 on Mon 15 Jul to 01:52 on Tue 16 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2097/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 15 Jul
Ahargaṇa, classicalDisc centre, no refractionMon 15 Jul
compat-drikpanchangComparison profileMon 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 Angeles10:50 → 10:5212:3548 min12:350 min14 Jul
Chicago12:50 → 12:5212:3331 min12:3319 min14 Jul
Jersey City13:50 → 13:5212:390 min12:3948 min15 Jul
Port of Spain13:50 → 13:5211:490 min11:4948 min15 Jul
London18:50 → 18:5212:430 min12:4348 min15 Jul
Durban19:50 → 19:5211:380 min11:3948 min15 Jul
Dubai21:50 → 21:5212:010 min12:0148 min15 Jul
Delhi23:20 → 23:2212:030 min12:0448 min15 Jul
Kolkata23:20 → 23:2211:190 min11:1948 min15 Jul
Singapore01:50 → 01:5212:470 min12:4748 min15 Jul
Sydney03:50 → 03:5211:380 min11:3848 min15 Jul
Suva05:50 → 05:5211:490 min11:4948 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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