Ruling · Śītalāṣṭamī · 2057

Wednesday 28 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 59 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 Tuesday 27 March

Aṣṭamī 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

Midday of Wednesday 28 March

Taken. The only midday Aṣṭamī reaches.

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

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 15:37 on Tue 27 Mar to 13:46 on Wed 28 Mar.

    2057-03-27T07:37:27Z → 2057-03-28T05:46:14Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:00–12:48 on the 27th, 12:00–12:48 on the 28th.

    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 27th and 48 of 48 on the 28th.

    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 3521 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 2057: Wednesday 28 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 2057 falls on Wednesday 28 March. Aṣṭamī runs from 15:37 on Tue 27 Mar to 13:46 on Wed 28 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2057/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 28 Mar
Ahargaṇa, classicalDisc centre, no refractionWed 28 Mar
compat-drikpanchangComparison profileWed 28 Mar
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/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 27thCoveredMadhyāhna 28thCoveredRuled
Los Angeles00:37 → 22:4612:3448 min12:340 min27 Mar
Chicago02:37 → 00:4612:3248 min12:320 min27 Mar
Jersey City03:37 → 01:4612:3848 min12:380 min27 Mar
Port of Spain03:37 → 01:4611:4748 min11:470 min27 Mar
London08:37 → 06:4612:4248 min12:420 min27 Mar
Durban09:37 → 07:4611:3748 min11:370 min27 Mar
Dubai11:37 → 09:4612:0048 min12:000 min27 Mar
Delhi13:07 → 11:1612:030 min12:020 min28 Mar
Kolkata13:07 → 11:1611:180 min11:180 min28 Mar
Singapore15:37 → 13:4612:460 min12:4648 min28 Mar
Sydney18:37 → 16:4612:360 min12:3648 min28 Mar
Suva19:37 → 17:4611:480 min11:4748 min28 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

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