Ruling · Vivasvat Saptamī · 2017

Friday 30 June

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 458 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 29 June

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:58  12:46 madhyāhna ends
11:1011:3411:5812:2212:4613:1013:34

0 of 48 minutes covered

Midday of Friday 30 June

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:58  12:46 madhyāhna ends
11:1011:3411:5812:2212:4613:1013:34

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 20:23 on Thu 29 Jun to 20:31 on Fri 30 Jun.

    2017-06-29T12:23:20Z → 2017-06-30T12:30:41Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 29th, 11:58–12:46 on the 30th.

    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 29th and 48 of 48 on the 30th.

    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 27468 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 2017: Friday 30 June.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 2017 falls on Friday 30 June. Saptamī runs from 20:23 on Thu 29 Jun to 20:31 on Fri 30 Jun and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2017/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 30 Jun
Ahargaṇa, classicalDisc centre, no refractionFri 30 Jun
compat-drikpanchangComparison profileFri 30 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 29thCoveredMadhyāhna 30thCoveredRuled
Los Angeles05:23 → 05:3112:3248 min12:330 min29 Jun
Chicago07:23 → 07:3112:3048 min12:300 min29 Jun
Jersey City08:23 → 08:3112:3648 min12:360 min29 Jun
Port of Spain08:23 → 08:3111:4648 min11:460 min29 Jun
London13:23 → 13:3112:405 min12:4048 min29 Jun
Durban14:23 → 14:3111:350 min11:3648 min30 Jun
Dubai16:23 → 16:3111:580 min11:5848 min30 Jun
Delhi17:53 → 18:0112:000 min12:0148 min30 Jun
Kolkata17:53 → 18:0111:160 min11:1648 min30 Jun
Singapore20:23 → 20:3112:440 min12:4448 min30 Jun
Sydney22:23 → 22:3111:350 min11:3548 min30 Jun
Suva00:23 → 00:3111:460 min11:4648 min30 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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