Ruling · Śītalāṣṭamī · 2013

Wednesday 3 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 618 minutes.

Decide it for

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 Wednesday 3 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

Midday of Thursday 4 April

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:57  12:45 madhyāhna ends
11:0911:3311:5712:2112:4513:0913:33

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 01:39 on Wed 3 Apr to 23:37 on Wed 3 Apr.

    2013-04-02T17:39:29Z → 2013-04-03T15:36:30Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:58–12:46 on the 3rd, 11:57–12:45 on the 4th.

    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 3rd and 0 of 48 on the 4th.

    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 37097 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 2013: Wednesday 3 April.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 2013 falls on Wednesday 3 April. Aṣṭamī runs from 01:39 on Wed 3 Apr to 23:37 on Wed 3 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2013/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 3 Apr
Ahargaṇa, classicalDisc centre, no refractionWed 3 Apr
compat-drikpanchangComparison profileWed 3 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 2ndCoveredMadhyāhna 3rdCoveredRuled
Los Angeles10:39 → 08:3712:3348 min12:320 min2 Apr
Chicago12:39 → 10:3712:3039 min12:300 min2 Apr
Jersey City13:39 → 11:3712:360 min12:360 min3 Apr
Port of Spain13:39 → 11:3711:460 min11:450 min3 Apr
London18:39 → 16:3712:410 min12:4048 min3 Apr
Durban19:39 → 17:3711:350 min11:3548 min3 Apr
Dubai21:39 → 19:3711:580 min11:5848 min3 Apr
Delhi23:09 → 21:0712:010 min12:0148 min3 Apr
Kolkata23:09 → 21:0711:160 min11:1648 min3 Apr
Singapore01:39 → 23:3712:440 min12:4448 min3 Apr
Sydney04:39 → 02:3712:350 min12:3448 min3 Apr
Suva05:39 → 03:3711:460 min11:4648 min3 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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