Ruling · Vivasvat Saptamī · 1981

Wednesday 8 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 461 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 Tuesday 7 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

Midday of Wednesday 8 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

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 20:28 on Tue 7 Jul to 21:47 on Wed 8 Jul.

    1981-07-07T12:28:15Z → 1981-07-08T13:47:14Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 7th, 11:59–12:47 on the 8th.

    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 7th and 48 of 48 on the 8th.

    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 27688 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 1981: Wednesday 8 July.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 1981 falls on Wednesday 8 July. Saptamī runs from 20:28 on Tue 7 Jul to 21:47 on Wed 8 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1981/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 8 Jul
Ahargaṇa, classicalDisc centre, no refractionWed 8 Jul
compat-drikpanchangComparison profileWed 8 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 7thCoveredMadhyāhna 8thCoveredRuled
Los Angeles05:28 → 06:4712:3448 min12:340 min7 Jul
Chicago07:28 → 08:4712:3148 min12:310 min7 Jul
Jersey City08:28 → 09:4712:3748 min12:370 min7 Jul
Port of Spain08:28 → 09:4711:4748 min11:470 min7 Jul
London13:28 → 14:4712:411 min12:4148 min7 Jul
Durban14:28 → 15:4711:370 min11:3748 min8 Jul
Dubai16:28 → 17:4711:590 min12:0048 min8 Jul
Delhi17:58 → 19:1712:020 min12:0248 min8 Jul
Kolkata17:58 → 19:1711:170 min11:1748 min8 Jul
Singapore19:58 → 21:1712:150 min12:1648 min8 Jul
Sydney22:28 → 23:4711:360 min11:3648 min8 Jul
Suva00:28 → 01:4711:470 min11:4748 min8 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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