Ruling · Vivasvat Saptamī · 1937

Wednesday 14 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 432 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 14 July

Taken. The only midday Saptamī reaches.

madhyāhna begins 12:00  12:48 madhyāhna ends
11:1211:3612:0012:2412:4813:1213:36

48 of 48 minutes covered

Midday of Thursday 15 July

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:00  12:48 madhyāhna ends
11:1211:3612:0012:2412:4813:1213:36

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 03:41 on Wed 14 Jul to 04:48 on Thu 15 Jul.

    1937-07-13T19:41:09Z → 1937-07-14T20:47:43Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 14th, 12:00–12:48 on the 15th.

    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 14th and 0 of 48 on the 15th.

    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 25918 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 1937: Wednesday 14 July.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 1937 falls on Wednesday 14 July. Saptamī runs from 03:41 on Wed 14 Jul to 04:48 on Thu 15 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1937/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 14 Jul
Ahargaṇa, classicalDisc centre, no refractionWed 14 Jul
compat-drikpanchangComparison profileWed 14 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 13thCoveredMadhyāhna 14thCoveredRuled
Los Angeles11:41 → 12:4811:3441 min11:3548 min13 Jul
Chicago14:41 → 15:4812:320 min12:3248 min14 Jul
Jersey City15:41 → 16:4812:380 min12:3848 min14 Jul
Port of Spain15:41 → 16:4811:480 min11:4848 min14 Jul
London20:41 → 21:4812:420 min12:4248 min14 Jul
Durban21:41 → 22:4811:380 min11:3848 min14 Jul
Dubai23:41 → 00:4812:000 min12:0048 min14 Jul
Delhi01:11 → 02:1812:020 min12:0348 min14 Jul
Kolkata01:11 → 02:1811:180 min11:1848 min14 Jul
Singapore03:01 → 04:0812:060 min12:0648 min14 Jul
Sydney05:41 → 06:4811:370 min11:3748 min14 Jul
Suva07:41 → 08:4811:480 min11:4848 min14 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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