Ruling · Śītalāṣṭamī · 1931

Wednesday 11 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 639 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 Wednesday 11 March

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 12:05  12:53 madhyāhna ends
11:1711:4112:0512:2912:5313:1713:41

48 of 48 minutes covered

Midday of Thursday 12 March

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:05  12:53 madhyāhna ends
11:1711:4112:0512:2912:5313:1713:41

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 01:16 on Wed 11 Mar to 01:25 on Thu 12 Mar.

    1931-03-10T17:15:44Z → 1931-03-11T17:25:26Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 11th, 12:05–12:53 on the 12th.

    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 11th and 0 of 48 on the 12th.

    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 38351 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 1931: Wednesday 11 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 1931 falls on Wednesday 11 March. Aṣṭamī runs from 01:16 on Wed 11 Mar to 01:25 on Thu 12 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1931/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 11 Mar
Ahargaṇa, classicalDisc centre, no refractionWed 11 Mar
compat-drikpanchangComparison profileWed 11 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 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles09:16 → 09:2511:4048 min11:390 min10 Mar
Chicago11:16 → 11:2511:3748 min11:370 min10 Mar
Jersey City12:16 → 12:2511:4315 min11:4343 min10 Mar
Port of Spain13:16 → 13:2511:530 min11:5248 min11 Mar
London17:16 → 17:2511:480 min11:4748 min11 Mar
Durban19:16 → 19:2511:420 min11:4248 min11 Mar
Dubai21:16 → 21:2512:060 min12:0548 min11 Mar
Delhi22:46 → 22:5512:080 min12:0848 min11 Mar
Kolkata22:46 → 22:5511:230 min11:2348 min11 Mar
Singapore00:16 → 00:2511:510 min11:5148 min11 Mar
Sydney03:16 → 03:2511:420 min11:4148 min11 Mar
Suva05:16 → 05:2511:530 min11:5348 min11 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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