Ruling · Vivasvat Saptamī · 1984

Thursday 5 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 324 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 Wednesday 4 July

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 Thursday 5 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 20:33 on Wed 4 Jul to 18:10 on Thu 5 Jul.

    1984-07-04T12:33:25Z → 1984-07-05T10:10:18Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 4th, 11:59–12:47 on the 5th.

    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 4th and 48 of 48 on the 5th.

    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 19426 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 1984: Thursday 5 July.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 1984 falls on Thursday 5 July. Saptamī runs from 20:33 on Wed 4 Jul to 18:10 on Thu 5 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1984/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 5 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 5 Jul
compat-drikpanchangComparison profileThu 5 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 4thCoveredMadhyāhna 5thCoveredRuled
Los Angeles05:33 → 03:1012:3348 min12:330 min4 Jul
Chicago07:33 → 05:1012:3148 min12:310 min4 Jul
Jersey City08:33 → 06:1012:3748 min12:370 min4 Jul
Port of Spain08:33 → 06:1011:4648 min11:470 min4 Jul
London13:33 → 11:1012:410 min12:410 min5 Jul
Durban14:33 → 12:1011:360 min11:3634 min5 Jul
Dubai16:33 → 14:1011:590 min11:5948 min5 Jul
Delhi18:03 → 15:4012:010 min12:0248 min5 Jul
Kolkata18:03 → 15:4011:170 min11:1748 min5 Jul
Singapore20:33 → 18:1012:450 min12:4548 min5 Jul
Sydney22:33 → 20:1011:360 min11:3648 min5 Jul
Suva00:33 → 22:1011:470 min11:4748 min5 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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