Ruling · Śītalāṣṭamī · 2027

Tuesday 30 March

Determinatein Ujjain, under the Rashtriya Panchang method. Clear of every threshold by 256 minutes.

Decide it for

UjjainDelhiKolkataSingaporeSydneyJersey City

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 Monday 29 March

Aṣṭamī 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 Tuesday 30 March

Taken. The only midday Aṣṭamī reaches.

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

48 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 17:12 on Mon 29 Mar to 19:40 on Tue 30 Mar.

    2027-03-29T11:41:30Z → 2027-03-30T14:10:18Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:08–12:56 on the 29th, 12:08–12:56 on the 30th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 29th and 48 of 48 on the 30th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 15333 s

  5. 05

    Ruling

    Śītalāṣṭamī, Ujjain, 2027: Tuesday 30 March.

    confidence: determinate

Say it like this

In Ujjain, Śītalāṣṭamī 2027 falls on Tuesday 30 March. Aṣṭamī runs from 17:12 on Mon 29 Mar to 19:40 on Tue 30 Mar and covers all of madhyāhna that midday.

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

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 30 Mar
Ahargaṇa, classicalDisc centre, no refractionTue 30 Mar
compat-drikpanchangComparison profileTue 30 Mar
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/shitalashtami · ruleset 2026.3-draft

Month
Phālguna, amānta
Pakṣa · aṅga
Kṛṣṇa · Aṣṭamī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 105

“K 8 Sitalastami, (purvaviddha)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAṣṭamīMadhyāhna 29thCoveredMadhyāhna 30thCoveredRuled
Los Angeles04:42 → 07:1012:3448 min12:340 min29 Mar
Chicago06:42 → 09:1012:3248 min12:310 min29 Mar
Jersey City07:42 → 10:1012:3748 min12:370 min29 Mar
Port of Spain07:42 → 10:1011:4748 min11:470 min29 Mar
London12:42 → 15:1012:4248 min12:4248 min29 Mar
Durban13:42 → 16:1011:370 min11:3648 min30 Mar
Dubai15:42 → 18:1012:000 min12:0048 min30 Mar
Delhi17:12 → 19:4012:020 min12:0248 min30 Mar
Kolkata17:12 → 19:4011:180 min11:1748 min30 Mar
Singapore19:42 → 22:1012:460 min12:4548 min30 Mar
Sydney22:42 → 01:1012:360 min12:3648 min30 Mar
Suva23:42 → 02:1011:470 min11:4748 min30 Mar
Profile · tradition
pac-rp@2026.1 · smarta
Rule
shitalashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s