Ruling · Śītalāṣṭamī · 1978

Friday 31 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 19 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 Friday 31 March

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:59  12:47 madhyāhna ends
Aṣṭamī begins 12:18:00
11:1111:3511:5912:2312:4713:1113:35

29 of 48 minutes covered, the last 29

Midday of Saturday 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

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

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 12:18 on Fri 31 Mar to 10:04 on Sat 1 Apr.

    1978-03-31T04:18:00Z → 1978-04-01T02:03:59Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 31st, 11:59–12:47 on the 1st.

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

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 29 of 48 minutes on the 31st and 0 of 48 on the 1st.

    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 1151 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 1978: Friday 31 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 1978 falls on Friday 31 March. Aṣṭamī runs from 12:18 on Fri 31 Mar to 10:04 on Sat 1 Apr and covers 29 of 48 minutes of madhyāhna that midday.

ahargana.org/baoding/festivals/1978/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 31 Mar
Ahargaṇa, classicalDisc centre, no refractionFri 31 Mar
compat-drikpanchangComparison profileFri 31 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 31stCoveredMadhyāhna 1stCoveredRuled
Los Angeles20:18 → 18:0411:3348 min11:330 min31 Mar
Chicago22:18 → 20:0411:3148 min11:310 min31 Mar
Jersey City23:18 → 21:0411:3748 min11:370 min31 Mar
Port of Spain00:18 → 22:0411:4648 min11:460 min31 Mar
London05:18 → 03:0412:4148 min12:410 min31 Mar
Durban06:18 → 04:0411:3648 min11:360 min31 Mar
Dubai08:18 → 06:0411:5948 min11:590 min31 Mar
Delhi09:48 → 07:3412:0248 min12:010 min31 Mar
Kolkata09:48 → 07:3411:1748 min11:170 min31 Mar
Singapore11:48 → 09:3412:1548 min12:150 min31 Mar
Sydney14:18 → 12:0411:350 min11:3529 min1 Apr
Suva16:18 → 14:0411:470 min11:4648 min1 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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