Ruling · Vivasvat Saptamī · 1909

Thursday 24 June

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 39 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 24 June

Taken. Both middays qualify; the rule takes the first.

madhyāhna begins 11:56  12:44 madhyāhna ends
Saptamī begins 11:16:39
11:0811:3211:5612:2012:4413:0813:32

48 of 48 minutes covered

Midday of Friday 25 June

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:56  12:44 madhyāhna ends
Saptamī ends 13:32:07
11:0811:3211:5612:2012:4413:0813:32

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 11:17 on Thu 24 Jun to 13:32 on Fri 25 Jun.

    1909-06-24T03:16:39Z → 1909-06-25T05:32:08Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:56–12:44 on the 24th, 11:56–12:44 on the 25th.

    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 24th and 48 of 48 on the 25th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 2367 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 1909: Thursday 24 June.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 1909 falls on Thursday 24 June. Saptamī runs from 11:17 on Thu 24 Jun to 13:32 on Fri 25 Jun and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.

ahargana.org/baoding/festivals/1909/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 24 Jun
Ahargaṇa, classicalDisc centre, no refractionThu 24 Jun
compat-drikpanchangComparison profileThu 24 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 24thCoveredMadhyāhna 25thCoveredRuled
Los Angeles19:17 → 21:3211:3148 min11:310 min24 Jun
Chicago21:17 → 23:3211:2948 min11:290 min24 Jun
Jersey City22:17 → 00:3211:3448 min11:350 min24 Jun
Port of Spain23:17 → 01:3211:4448 min11:440 min24 Jun
London03:17 → 05:3211:3948 min11:390 min24 Jun
Durban05:17 → 07:3211:3448 min11:340 min24 Jun
Dubai06:58 → 09:1311:3848 min11:380 min24 Jun
Delhi08:47 → 11:0211:5948 min11:590 min24 Jun
Kolkata08:47 → 11:0211:1548 min11:150 min24 Jun
Singapore10:17 → 12:3211:4348 min11:4348 min24 Jun
Sydney13:17 → 15:3211:330 min11:3348 min25 Jun
Suva15:12 → 17:2711:390 min11:3948 min25 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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