Ruling · Śītalāṣṭamī · 1902

Tuesday 1 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 520 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 Tuesday 1 April

Taken. The only midday Aṣṭamī reaches.

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

48 of 48 minutes covered

Midday of Wednesday 2 April

Aṣṭamī is absent from madhyāhna. Not taken.

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

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 01:21 on Tue 1 Apr to 03:19 on Wed 2 Apr.

    1902-03-31T17:21:20Z → 1902-04-01T19:18:43Z

  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 48 of 48 minutes on the 1st and 0 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 31183 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 1902: Tuesday 1 April.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 1902 falls on Tuesday 1 April. Aṣṭamī runs from 01:21 on Tue 1 Apr to 03:19 on Wed 2 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1902/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 1 Apr
Ahargaṇa, classicalDisc centre, no refractionTue 1 Apr
compat-drikpanchangComparison profileTue 1 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 31stCoveredMadhyāhna 1stCoveredRuled
Los Angeles09:21 → 11:1911:3448 min11:330 min31 Mar
Chicago11:21 → 13:1911:3148 min11:3148 min31 Mar
Jersey City12:21 → 14:1911:374 min11:3748 min31 Mar
Port of Spain13:21 → 15:1911:470 min11:4648 min1 Apr
London17:21 → 19:1911:420 min11:4148 min1 Apr
Durban18:51 → 20:4911:060 min11:0648 min1 Apr
Dubai21:02 → 23:0011:400 min11:4048 min1 Apr
Delhi22:42 → 00:4011:530 min11:5348 min1 Apr
Kolkata22:42 → 00:4011:080 min11:0848 min1 Apr
Singapore00:16 → 02:1411:400 min11:4048 min1 Apr
Sydney03:21 → 05:1911:360 min11:3548 min1 Apr
Suva05:16 → 07:1411:420 min11:4148 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

About Ahargaṇa