Ruling · Śītalāṣṭamī · 2055

Saturday 20 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 625 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 Friday 19 March

Aṣṭamī is absent from madhyāhna. Not taken.

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

0 of 48 minutes covered

Midday of Saturday 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 23:16 on Fri 19 Mar to 23:34 on Sat 20 Mar.

    2055-03-19T15:15:44Z → 2055-03-20T15:33:58Z

  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 37521 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 2055: Saturday 20 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 2055 falls on Saturday 20 March. Aṣṭamī runs from 23:16 on Fri 19 Mar to 23:34 on Sat 20 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2055/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 20 Mar
Ahargaṇa, classicalDisc centre, no refractionSat 20 Mar
compat-drikpanchangComparison profileSat 20 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 Angeles08:16 → 08:3412:3748 min12:370 min19 Mar
Chicago10:16 → 10:3412:3548 min12:340 min19 Mar
Jersey City11:16 → 11:3412:4048 min12:400 min19 Mar
Port of Spain11:16 → 11:3411:5048 min11:500 min19 Mar
London15:16 → 15:3411:450 min11:4548 min20 Mar
Durban17:16 → 17:3411:390 min11:3948 min20 Mar
Dubai19:16 → 19:3412:030 min12:0348 min20 Mar
Delhi20:46 → 21:0412:050 min12:0548 min20 Mar
Kolkata20:46 → 21:0411:210 min11:2048 min20 Mar
Singapore23:16 → 23:3412:490 min12:4848 min20 Mar
Sydney02:16 → 02:3412:390 min12:3948 min20 Mar
Suva03:16 → 03:3411:500 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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