Ruling · Vivasvat Saptamī · 2027

Saturday 10 July

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 18 minutes.

Decide it for

23°11′ N 75°47′ E · Asia/Kolkata · GeoNames 1253914

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Friday 9 July

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:08  12:56 madhyāhna ends
11:2011:4412:0812:3212:5613:2013:44

0 of 48 minutes covered

Midday of Saturday 10 July

Taken. The only midday Saptamī reaches.

madhyāhna begins 12:08  12:56 madhyāhna ends
Saptamī ends 12:37:42
11:2011:4412:0812:3212:5613:2013:44

30 of 48 minutes covered, the first 30

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 14:04 on Fri 9 Jul to 12:38 on Sat 10 Jul.

    2027-07-09T08:34:12Z → 2027-07-10T07:07:43Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 9th, 12:08–12:56 on the 10th.

    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 9th and 30 of 48 on the 10th.

    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 1108 s

  5. 05

    Ruling

    Vivasvat Saptamī, Ujjain, 2027: Saturday 10 July.

    confidence: determinate

Say it like this

In Ujjain, Vivasvat Saptamī 2027 falls on Saturday 10 July. Saptamī runs from 14:04 on Fri 9 Jul to 12:38 on Sat 10 Jul and covers 30 of 48 minutes of madhyāhna that midday.

ahargana.org/ujjain/festivals/2027/vivasvat-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 10 Jul
Ahargaṇa, classicalDisc centre, no refractionSat 10 Jul
compat-drikpanchangComparison profileSat 10 Jul
No institution has a recorded ruling for Ujjain.

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 9thCoveredMadhyāhna 10thCoveredRuled
Los Angeles01:34 → 00:0812:3448 min12:340 min9 Jul
Chicago03:34 → 02:0812:3248 min12:320 min9 Jul
Jersey City04:34 → 03:0812:3748 min12:380 min9 Jul
Port of Spain04:34 → 03:0811:4748 min11:470 min9 Jul
London09:34 → 08:0812:4148 min12:420 min9 Jul
Durban10:34 → 09:0811:3748 min11:370 min9 Jul
Dubai12:34 → 11:0812:0014 min12:000 min9 Jul
Delhi14:04 → 12:3812:020 min12:0235 min10 Jul
Kolkata14:04 → 12:3811:180 min11:1848 min10 Jul
Singapore16:34 → 15:0812:460 min12:4648 min10 Jul
Sydney18:34 → 17:0811:360 min11:3748 min10 Jul
Suva20:34 → 19:0811:480 min11:4848 min10 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