Ruling · Vivasvat Saptamī · 2051

Saturday 15 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 170 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 Friday 14 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 Saturday 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

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 15:38 on Fri 14 Jul to 18:05 on Sat 15 Jul.

    2051-07-14T07:38:26Z → 2051-07-15T10:04:50Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 14th, 12:00–12:48 on the 15th.

    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 14th and 48 of 48 on the 15th.

    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 10228 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 2051: Saturday 15 July.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 2051 falls on Saturday 15 July. Saptamī runs from 15:38 on Fri 14 Jul to 18:05 on Sat 15 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2051/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 15 Jul
Ahargaṇa, classicalDisc centre, no refractionSat 15 Jul
compat-drikpanchangComparison profileSat 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 Angeles00:38 → 03:0512:3548 min12:350 min14 Jul
Chicago02:38 → 05:0512:3248 min12:330 min14 Jul
Jersey City03:38 → 06:0512:3848 min12:380 min14 Jul
Port of Spain03:38 → 06:0511:4848 min11:480 min14 Jul
London08:38 → 11:0512:4248 min12:420 min14 Jul
Durban09:38 → 12:0511:3848 min11:3827 min14 Jul
Dubai11:38 → 14:0512:0148 min12:0148 min14 Jul
Delhi13:08 → 15:3512:030 min12:0348 min15 Jul
Kolkata13:08 → 15:3511:180 min11:1948 min15 Jul
Singapore15:38 → 18:0512:470 min12:4748 min15 Jul
Sydney17:38 → 20:0511:370 min11:3748 min15 Jul
Suva19:38 → 22:0511:480 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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