Ruling · Śītalāṣṭamī · 2003

Tuesday 25 March

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 551 minutes.

Decide it for

DaqingDelhiKolkataSingaporeSydneyJersey City

46°35′ N 125°00′ E · Asia/Shanghai · GeoNames 2037860

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Monday 24 March

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:23  12:11 madhyāhna ends
10:3510:5911:2311:4712:1112:3512:59

0 of 48 minutes covered

Midday of Tuesday 25 March

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:23  12:11 madhyāhna ends
10:3510:5911:2311:4712:1112:3512:59

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 22:29 on Mon 24 Mar to 21:22 on Tue 25 Mar.

    2003-03-24T14:29:00Z → 2003-03-25T13:21:51Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:23–12:11 on the 24th, 11:23–12:11 on the 25th.

    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 24th and 48 of 48 on the 25th.

    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 33073 s

  5. 05

    Ruling

    Śītalāṣṭamī, Daqing, 2003: Tuesday 25 March.

    confidence: determinate

Say it like this

In Daqing, Śītalāṣṭamī 2003 falls on Tuesday 25 March. Aṣṭamī runs from 22:29 on Mon 24 Mar to 21:22 on Tue 25 Mar and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2003/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 25 Mar
Ahargaṇa, classicalDisc centre, no refractionTue 25 Mar
compat-drikpanchangComparison profileTue 25 Mar
No institution has a recorded ruling for Daqing.

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 24thCoveredMadhyāhna 25thCoveredRuled
Los Angeles06:29 → 05:2211:3648 min11:350 min24 Mar
Chicago08:29 → 07:2211:3348 min11:330 min24 Mar
Jersey City09:29 → 08:2211:3948 min11:390 min24 Mar
Port of Spain10:29 → 09:2211:4948 min11:480 min24 Mar
London14:29 → 13:2211:430 min11:4348 min25 Mar
Durban16:29 → 15:2211:380 min11:3848 min25 Mar
Dubai18:29 → 17:2212:010 min12:0148 min25 Mar
Delhi19:59 → 18:5212:040 min12:0348 min25 Mar
Kolkata19:59 → 18:5211:190 min11:1948 min25 Mar
Singapore22:29 → 21:2212:470 min12:4748 min25 Mar
Sydney01:29 → 00:2212:370 min12:3748 min25 Mar
Suva02:29 → 01:2211:490 min11:4848 min25 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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