Ruling · Vivasvat Saptamī · 2064

Sunday 20 July

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 535 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 Sunday 20 July

Taken. The only midday Saptamī reaches.

madhyāhna begins 12:01  12:49 madhyāhna ends
11:1311:3712:0112:2512:4913:1313:37

48 of 48 minutes covered

Midday of Monday 21 July

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:01  12:49 madhyāhna ends
11:1311:3712:0112:2512:4913:1313:37

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 03:06 on Sun 20 Jul to 00:44 on Mon 21 Jul.

    2064-07-19T19:05:32Z → 2064-07-20T16:43:35Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:01–12:49 on the 20th, 12:01–12:49 on the 21st.

    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 20th and 0 of 48 on the 21st.

    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 32100 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 2064: Sunday 20 July.

    confidence: determinate

Say it like this

In Baoding, Vivasvat Saptamī 2064 falls on Sunday 20 July. Saptamī runs from 03:06 on Sun 20 Jul to 00:44 on Mon 21 Jul and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2064/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 20 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 20 Jul
compat-drikpanchangComparison profileSun 20 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 19thCoveredMadhyāhna 20thCoveredRuled
Los Angeles12:06 → 09:4412:3548 min12:350 min19 Jul
Chicago14:06 → 11:4412:330 min12:330 min20 Jul
Jersey City15:06 → 12:4412:390 min12:395 min20 Jul
Port of Spain15:06 → 12:4411:490 min11:4948 min20 Jul
London20:06 → 17:4412:430 min12:4348 min20 Jul
Durban21:06 → 18:4411:390 min11:3948 min20 Jul
Dubai23:06 → 20:4412:010 min12:0148 min20 Jul
Delhi00:36 → 22:1412:040 min12:0448 min20 Jul
Kolkata00:36 → 22:1411:190 min11:1948 min20 Jul
Singapore03:06 → 00:4412:470 min12:4748 min20 Jul
Sydney05:06 → 02:4411:380 min11:3848 min20 Jul
Suva07:06 → 04:4411:490 min11:4948 min20 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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