Ruling · Śītalāṣṭamī · 2036

Thursday 20 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 46 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 19 March

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:02  12:50 madhyāhna ends
Aṣṭamī begins 13:36:37
11:1411:3812:0212:2612:5013:1413:38

0 of 48 minutes covered

Midday of Thursday 20 March

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 12:02  12:50 madhyāhna ends
11:1411:3812:0212:2612:5013:1413:38

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 13:37 on Wed 19 Mar to 15:48 on Thu 20 Mar.

    2036-03-19T05:36:37Z → 2036-03-20T07:47:48Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:02–12:50 on the 19th, 12:02–12:50 on the 20th.

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

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 19th and 48 of 48 on the 20th.

    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 2789 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 2036: Thursday 20 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 2036 falls on Thursday 20 March. Aṣṭamī runs from 13:37 on Wed 19 Mar to 15:48 on Thu 20 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2036/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 20 Mar
Ahargaṇa, classicalDisc centre, no refractionThu 20 Mar
compat-drikpanchangComparison profileWed 19 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 19thCoveredMadhyāhna 20thCoveredRuled
Los Angeles22:37 → 00:4812:3748 min12:360 min19 Mar
Chicago00:37 → 02:4812:3448 min12:340 min19 Mar
Jersey City01:37 → 03:4812:4048 min12:400 min19 Mar
Port of Spain01:37 → 03:4811:5048 min11:490 min19 Mar
London05:37 → 07:4811:4548 min11:440 min19 Mar
Durban07:37 → 09:4811:3948 min11:390 min19 Mar
Dubai09:37 → 11:4812:0348 min12:020 min19 Mar
Delhi11:07 → 13:1812:0548 min12:0548 min19 Mar
Kolkata11:07 → 13:1811:2048 min11:2048 min19 Mar
Singapore13:37 → 15:4812:480 min12:4848 min20 Mar
Sydney16:37 → 18:4812:390 min12:3848 min20 Mar
Suva17:37 → 19:4811:500 min11:5048 min20 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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