Ruling · Vivasvat Saptamī · 1940

Thursday 11 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 368 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 Thursday 11 July

Taken. The only midday Saptamī reaches.

madhyāhna begins 12:59  13:47 madhyāhna ends
12:1112:3512:5913:2313:4714:1114:35

48 of 48 minutes covered

Midday of Friday 12 July

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:59  13:47 madhyāhna ends
12:1112:3512:5913:2313:4714:1114:35

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 06:52 on Thu 11 Jul to 04:38 on Fri 12 Jul.

    1940-07-10T21:51:48Z → 1940-07-11T19:38:17Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:59–13:47 on the 11th, 12:59–13:47 on the 12th.

    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 11th and 0 of 48 on the 12th.

    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 22050 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 1940: Thursday 11 July.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 1940 falls on Thursday 11 July. Saptamī runs from 06:52 on Thu 11 Jul to 04:38 on Fri 12 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1940/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 11 Jul
Ahargaṇa, classicalDisc centre, no refractionThu 11 Jul
compat-drikpanchangComparison profileThu 11 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 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles13:52 → 11:3811:340 min11:344 min11 Jul
Chicago16:52 → 14:3812:320 min12:3248 min11 Jul
Jersey City17:52 → 15:3812:370 min12:3748 min11 Jul
Port of Spain17:52 → 15:3811:470 min11:4748 min11 Jul
London22:52 → 20:3812:410 min12:4248 min11 Jul
Durban23:52 → 21:3811:370 min11:3748 min11 Jul
Dubai01:52 → 23:3812:000 min12:0048 min11 Jul
Delhi03:22 → 01:0812:020 min12:0248 min11 Jul
Kolkata03:22 → 01:0811:180 min11:1848 min11 Jul
Singapore05:12 → 02:5812:060 min12:0648 min11 Jul
Sydney07:52 → 05:3811:360 min11:3748 min11 Jul
Suva09:52 → 07:3811:470 min11:4848 min11 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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