Ruling · Vivasvat Saptamī · 1910

Wednesday 13 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 520 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 13 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

Midday of Thursday 14 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

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 01:32 on Wed 13 Jul to 03:19 on Thu 14 Jul.

    1910-07-12T17:32:22Z → 1910-07-13T19:19:10Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 13th, 11:59–12:47 on the 14th.

    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 13th and 0 of 48 on the 14th.

    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 31219 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 1910: Wednesday 13 July.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 1910 falls on Wednesday 13 July. Saptamī runs from 01:32 on Wed 13 Jul to 03:19 on Thu 14 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1910/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 13 Jul
Ahargaṇa, classicalDisc centre, no refractionWed 13 Jul
compat-drikpanchangComparison profileWed 13 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles09:32 → 11:1911:3448 min11:340 min12 Jul
Chicago11:32 → 13:1911:3247 min11:3248 min12 Jul
Jersey City12:32 → 14:1911:370 min11:3848 min13 Jul
Port of Spain13:32 → 15:1911:470 min11:4748 min13 Jul
London17:32 → 19:1911:410 min11:4248 min13 Jul
Durban19:32 → 21:1911:370 min11:3748 min13 Jul
Dubai21:13 → 23:0011:410 min11:4148 min13 Jul
Delhi23:02 → 00:4912:020 min12:0248 min13 Jul
Kolkata23:02 → 00:4911:180 min11:1848 min13 Jul
Singapore00:32 → 02:1911:460 min11:4648 min13 Jul
Sydney03:32 → 05:1911:370 min11:3748 min13 Jul
Suva05:27 → 07:1411:430 min11:4348 min13 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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