Ruling · Vivasvat Saptamī · 1920

Tuesday 22 June

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 491 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 22 June

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:56  12:44 madhyāhna ends
11:0811:3211:5612:2012:4413:0813:32

48 of 48 minutes covered

Midday of Wednesday 23 June

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:56  12:44 madhyāhna ends
11:0811:3211:5612:2012:4413:0813:32

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 03:44 on Tue 22 Jun to 02:55 on Wed 23 Jun.

    1920-06-21T19:44:30Z → 1920-06-22T18:55:21Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 22nd, 11:56–12:44 on the 23rd.

    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 22nd and 0 of 48 on the 23rd.

    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 29478 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 1920: Tuesday 22 June.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 1920 falls on Tuesday 22 June. Saptamī runs from 03:44 on Tue 22 Jun to 02:55 on Wed 23 Jun and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1920/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 22 Jun
Ahargaṇa, classicalDisc centre, no refractionTue 22 Jun
compat-drikpanchangComparison profileTue 22 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 21stCoveredMadhyāhna 22ndCoveredRuled
Los Angeles11:44 → 10:5511:3134 min11:310 min21 Jun
Chicago14:44 → 13:5512:280 min12:2848 min22 Jun
Jersey City15:44 → 14:5512:340 min12:3448 min22 Jun
Port of Spain15:44 → 14:5511:440 min11:4448 min22 Jun
London20:44 → 19:5512:380 min12:3848 min22 Jun
Durban21:44 → 20:5511:330 min11:3448 min22 Jun
Dubai23:44 → 22:5511:560 min11:5648 min22 Jun
Delhi01:14 → 00:2511:590 min11:5948 min22 Jun
Kolkata01:14 → 00:2511:140 min11:1448 min22 Jun
Singapore02:44 → 01:5511:420 min11:4248 min22 Jun
Sydney05:44 → 04:5511:330 min11:3348 min22 Jun
Suva07:44 → 06:5511:440 min11:4448 min22 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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