Ruling · Vivasvat Saptamī · 2087

Sunday 6 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 7 min 10 s.

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 6 July

Taken. Both middays qualify; the rule takes the first.

madhyāhna begins 11:59  12:47 madhyāhna ends
Saptamī begins 11:52:04
11:1111:3511:5912:2312:4713:1113:35

48 of 48 minutes covered

Midday of Monday 7 July

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:59  12:47 madhyāhna ends
Saptamī ends 13:25:20
11:1111:3511:5912:2312:4713:1113:35

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 11:52 on Sun 6 Jul to 13:25 on Mon 7 Jul.

    2087-07-06T03:52:04Z → 2087-07-07T05:25:20Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 6th, 11:59–12:47 on the 7th.

    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 6th and 48 of 48 on the 7th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 430 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 2087: Sunday 6 July.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 2087 falls on Sunday 6 July. Saptamī runs from 11:52 on Sun 6 Jul to 13:25 on Mon 7 Jul and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.

ahargana.org/baoding/festivals/2087/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 6 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 6 Jul
compat-drikpanchangComparison profileSun 6 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 6thCoveredMadhyāhna 7thCoveredRuled
Los Angeles20:52 → 22:2512:3448 min12:340 min6 Jul
Chicago22:52 → 00:2512:3248 min12:320 min6 Jul
Jersey City23:52 → 01:2512:3748 min12:380 min6 Jul
Port of Spain23:52 → 01:2511:4748 min11:480 min6 Jul
London04:52 → 06:2512:4248 min12:420 min6 Jul
Durban05:52 → 07:2511:3748 min11:370 min6 Jul
Dubai07:52 → 09:2512:0048 min12:000 min6 Jul
Delhi09:22 → 10:5512:0248 min12:020 min6 Jul
Kolkata09:22 → 10:5511:1848 min11:180 min6 Jul
Singapore11:52 → 13:2512:4648 min12:4639 min6 Jul
Sydney13:52 → 15:2511:360 min11:3748 min7 Jul
Suva15:52 → 17:2511:480 min11:4848 min7 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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