Ruling · Vivasvat Saptamī · 2031

Friday 27 June

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 392 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 Thursday 26 June

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

0 of 48 minutes covered

Midday of Friday 27 June

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

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 19:17 on Thu 26 Jun to 20:08 on Fri 27 Jun.

    2031-06-26T11:16:51Z → 2031-06-27T12:08:16Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:57–12:45 on the 26th, 11:57–12:45 on the 27th.

    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 26th and 48 of 48 on the 27th.

    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 23516 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 2031: Friday 27 June.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 2031 falls on Friday 27 June. Saptamī runs from 19:17 on Thu 26 Jun to 20:08 on Fri 27 Jun and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2031/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 27 Jun
Ahargaṇa, classicalDisc centre, no refractionFri 27 Jun
compat-drikpanchangComparison profileFri 27 Jun
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 26thCoveredMadhyāhna 27thCoveredRuled
Los Angeles04:17 → 05:0812:3248 min12:320 min26 Jun
Chicago06:17 → 07:0812:2948 min12:300 min26 Jun
Jersey City07:17 → 08:0812:3548 min12:350 min26 Jun
Port of Spain07:17 → 08:0811:4548 min11:450 min26 Jun
London12:17 → 13:0812:3948 min12:3929 min26 Jun
Durban13:17 → 14:0811:350 min11:3548 min27 Jun
Dubai15:17 → 16:0811:580 min11:5848 min27 Jun
Delhi16:47 → 17:3812:000 min12:0048 min27 Jun
Kolkata16:47 → 17:3811:150 min11:1648 min27 Jun
Singapore19:17 → 20:0812:430 min12:4448 min27 Jun
Sydney21:17 → 22:0811:340 min11:3448 min27 Jun
Suva23:17 → 00:0811:450 min11:4548 min27 Jun
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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