Ruling · Śītalāṣṭamī · 1990

Monday 19 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 42 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 Monday 19 March

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 12:02  12:50 madhyāhna ends
11:1411:3812:0212:2612:5013:1413:38

48 of 48 minutes covered

Midday of Tuesday 20 March

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:02  12:50 madhyāhna ends
Aṣṭamī ends 11:20:19
11:1411:3812:0212:2612:5013:1413:38

0 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 09:32 on Mon 19 Mar to 11:20 on Tue 20 Mar.

    1990-03-19T01:32:29Z → 1990-03-20T03:20:20Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:02–12:50 on the 19th, 12:02–12:50 on the 20th.

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

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 19th and 0 of 48 on the 20th.

    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 2506 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 1990: Monday 19 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 1990 falls on Monday 19 March. Aṣṭamī runs from 09:32 on Mon 19 Mar to 11:20 on Tue 20 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1990/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 19 Mar
Ahargaṇa, classicalDisc centre, no refractionMon 19 Mar
compat-drikpanchangComparison profileMon 19 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 19thCoveredMadhyāhna 20thCoveredRuled
Los Angeles17:32 → 19:2011:3748 min11:370 min19 Mar
Chicago19:32 → 21:2011:3548 min11:340 min19 Mar
Jersey City20:32 → 22:2011:4048 min11:400 min19 Mar
Port of Spain21:32 → 23:2011:5048 min11:500 min19 Mar
London01:32 → 03:2011:4548 min11:450 min19 Mar
Durban03:32 → 05:2011:4048 min11:390 min19 Mar
Dubai05:32 → 07:2012:0348 min12:030 min19 Mar
Delhi07:02 → 08:5012:0548 min12:050 min19 Mar
Kolkata07:02 → 08:5011:2148 min11:200 min19 Mar
Singapore09:32 → 11:2012:4948 min12:480 min19 Mar
Sydney11:32 → 13:2011:3948 min11:3948 min19 Mar
Suva13:32 → 15:2011:500 min11:5048 min20 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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