Ruling · Vivasvat Saptamī · 1905

Sunday 9 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 126 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 Saturday 8 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

Midday of Sunday 9 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 17:01 on Sat 8 Jul to 14:53 on Sun 9 Jul.

    1905-07-08T09:01:15Z → 1905-07-09T06:52:35Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 8th, 11:59–12:47 on the 9th.

    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 8th and 48 of 48 on the 9th.

    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 7545 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 1905: Sunday 9 July.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 1905 falls on Sunday 9 July. Saptamī runs from 17:01 on Sat 8 Jul to 14:53 on Sun 9 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1905/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 9 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 9 Jul
compat-drikpanchangComparison profileSun 9 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 8thCoveredMadhyāhna 9thCoveredRuled
Los Angeles01:01 → 22:5311:3448 min11:340 min8 Jul
Chicago03:01 → 00:5311:3148 min11:310 min8 Jul
Jersey City04:01 → 01:5311:3748 min11:370 min8 Jul
Port of Spain05:01 → 02:5311:4748 min11:470 min8 Jul
London09:01 → 06:5311:4148 min11:410 min8 Jul
Durban11:01 → 08:5311:3748 min11:370 min8 Jul
Dubai12:42 → 10:3411:400 min11:410 min9 Jul
Delhi14:22 → 12:1411:530 min11:5321 min9 Jul
Kolkata14:22 → 12:1411:080 min11:0848 min9 Jul
Singapore16:01 → 13:5311:450 min11:4548 min9 Jul
Sydney19:01 → 16:5311:360 min11:3648 min9 Jul
Suva20:56 → 18:4811:420 min11:4248 min9 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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