Ruling · Śītalāṣṭamī · 2071

Monday 23 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 21 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 23 March

Taken. Both middays qualify; the rule takes the first.

madhyāhna begins 12:01  12:49 madhyāhna ends
Aṣṭamī begins 12:21:49
11:1311:3712:0112:2512:4913:1313:37

27 of 48 minutes covered, the last 27

Midday of Tuesday 24 March

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 12:01  12:49 madhyāhna ends
11:1311:3712:0112:2512:4913:1313:37

48 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 12:22 on Mon 23 Mar to 14:47 on Tue 24 Mar.

    2071-03-23T04:21:49Z → 2071-03-24T06:46:42Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:01–12:49 on the 23rd, 12:01–12:49 on the 24th.

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

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 27 of 48 minutes on the 23rd and 48 of 48 on the 24th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 1237 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 2071: Monday 23 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 2071 falls on Monday 23 March. Aṣṭamī runs from 12:22 on Mon 23 Mar to 14:47 on Tue 24 Mar and covers 27 of 48 minutes of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.

ahargana.org/baoding/festivals/2071/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 23 Mar
Ahargaṇa, classicalDisc centre, no refractionMon 23 Mar
compat-drikpanchangComparison profileMon 23 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 23rdCoveredMadhyāhna 24thCoveredRuled
Los Angeles21:22 → 23:4712:3648 min12:350 min23 Mar
Chicago23:22 → 01:4712:3448 min12:330 min23 Mar
Jersey City00:22 → 02:4712:3948 min12:390 min23 Mar
Port of Spain00:22 → 02:4711:4948 min11:480 min23 Mar
London04:22 → 06:4711:4448 min11:430 min23 Mar
Durban06:22 → 08:4711:3848 min11:380 min23 Mar
Dubai08:22 → 10:4712:0248 min12:010 min23 Mar
Delhi09:52 → 12:1712:0448 min12:0413 min23 Mar
Kolkata09:52 → 12:1711:1948 min11:1948 min23 Mar
Singapore12:22 → 14:4712:4748 min12:4748 min23 Mar
Sydney15:22 → 17:4712:380 min12:3748 min24 Mar
Suva16:22 → 18:4711:490 min11:4948 min24 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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