Ruling · Śītalāṣṭamī · 1986

Wednesday 2 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 112 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 1 April

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

0 of 48 minutes covered

Midday of Wednesday 2 April

Taken. The only midday Aṣṭamī reaches.

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

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 16:27 on Tue 1 Apr to 14:38 on Wed 2 Apr.

    1986-04-01T08:27:15Z → 1986-04-02T06:38:16Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 1st, 11:58–12:46 on the 2nd.

    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 1st and 48 of 48 on the 2nd.

    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 6723 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 1986: Wednesday 2 April.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 1986 falls on Wednesday 2 April. Aṣṭamī runs from 16:27 on Tue 1 Apr to 14:38 on Wed 2 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1986/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 2 Apr
Ahargaṇa, classicalDisc centre, no refractionWed 2 Apr
compat-drikpanchangComparison profileWed 2 Apr
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 1stCoveredMadhyāhna 2ndCoveredRuled
Los Angeles00:27 → 22:3811:3348 min11:330 min1 Apr
Chicago02:27 → 00:3811:3148 min11:310 min1 Apr
Jersey City03:27 → 01:3811:3748 min11:360 min1 Apr
Port of Spain04:27 → 02:3811:4648 min11:460 min1 Apr
London09:27 → 07:3812:4148 min12:410 min1 Apr
Durban10:27 → 08:3811:3648 min11:350 min1 Apr
Dubai12:27 → 10:3811:5920 min11:590 min1 Apr
Delhi13:57 → 12:0812:010 min12:017 min2 Apr
Kolkata13:57 → 12:0811:170 min11:1648 min2 Apr
Singapore16:27 → 14:3812:450 min12:4448 min2 Apr
Sydney18:27 → 16:3811:350 min11:3548 min2 Apr
Suva20:27 → 18:3811:460 min11:4648 min2 Apr
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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