Ruling · Vivasvat Saptamī · 2033

Sunday 3 July

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 2 min 33 s away. Say “contested”.

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 Sunday 3 July

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:58  12:46 madhyāhna ends
11:1011:3411:5812:2212:4613:1013:34

48 of 48 minutes covered

Midday of Monday 4 July

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:59  12:47 madhyāhna ends
Saptamī ends 11:55:58
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 09:27 on Sun 3 Jul to 11:56 on Mon 4 Jul.

    2033-07-03T01:27:24Z → 2033-07-04T03:55:58Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 3rd, 11:59–12:47 on the 4th.

    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 3rd and 0 of 48 on the 4th.

    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 153 s < 300 s

  5. 05

    Ruling

    Vivasvat Saptamī, Baoding, 2033: Sunday 3 July.

    confidence: boundary (margin)

Say it like this

In Baoding, Vivasvat Saptamī 2033 falls on Sunday 3 July. Saptamī runs from 09:27 on Sun 3 Jul to 11:56 on Mon 4 Jul and covers all of madhyāhna that midday. It is 2 min 33 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/2033/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 3 Jul
Ahargaṇa, classicalDisc centre, no refractionSun 3 Jul
compat-drikpanchangComparison profileSun 3 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 3rdCoveredMadhyāhna 4thCoveredRuled
Los Angeles18:27 → 20:5612:3348 min12:330 min3 Jul
Chicago20:27 → 22:5612:3148 min12:310 min3 Jul
Jersey City21:27 → 23:5612:3748 min12:370 min3 Jul
Port of Spain21:27 → 23:5611:4648 min11:470 min3 Jul
London02:27 → 04:5612:4148 min12:410 min3 Jul
Durban03:27 → 05:5611:3648 min11:360 min3 Jul
Dubai05:27 → 07:5611:5948 min11:590 min3 Jul
Delhi06:57 → 09:2612:0148 min12:020 min3 Jul
Kolkata06:57 → 09:2611:1748 min11:170 min3 Jul
Singapore09:27 → 11:5612:4548 min12:450 min3 Jul
Sydney11:27 → 13:5611:3648 min11:3648 min3 Jul
Suva13:27 → 15:5611:470 min11:4748 min4 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

About Ahargaṇa