Ruling · Vivasvat Saptamī · 2090

Monday 3 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 127 minutes.

Decide it for

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 3 July

Taken. The only midday Saptamī reaches.

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

48 of 48 minutes covered

Midday of Tuesday 4 July

Saptamī is absent from madhyāhna. Not taken.

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

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 09:51 on Mon 3 Jul to 07:39 on Tue 4 Jul.

    2090-07-03T01:51:26Z → 2090-07-03T23:39:02Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 3rd, 11:59–12:47 on the 4th.

    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 3rd and 0 of 48 on the 4th.

    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 7643 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 2090: Monday 3 July.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 2090 falls on Monday 3 July. Saptamī runs from 09:51 on Mon 3 Jul to 07:39 on Tue 4 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2090/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 3 Jul
Ahargaṇa, classicalDisc centre, no refractionMon 3 Jul
compat-drikpanchangComparison profileMon 3 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 3rdCoveredMadhyāhna 4thCoveredRuled
Los Angeles18:51 → 16:3912:3448 min12:340 min3 Jul
Chicago20:51 → 18:3912:3148 min12:320 min3 Jul
Jersey City21:51 → 19:3912:3748 min12:370 min3 Jul
Port of Spain21:51 → 19:3911:4748 min11:470 min3 Jul
London02:51 → 00:3912:4148 min12:410 min3 Jul
Durban03:51 → 01:3911:3748 min11:370 min3 Jul
Dubai05:51 → 03:3912:0048 min12:000 min3 Jul
Delhi07:21 → 05:0912:0248 min12:020 min3 Jul
Kolkata07:21 → 05:0911:1748 min11:170 min3 Jul
Singapore09:51 → 07:3912:4548 min12:460 min3 Jul
Sydney11:51 → 09:3911:3633 min11:360 min3 Jul
Suva13:51 → 11:3911:470 min11:470 min4 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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