Ruling · Śītalāṣṭamī · 2001

Saturday 17 March

Determinatein Daqing, under the Rashtriya Panchang method. Clear of every threshold by 224 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 Friday 16 March

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:25  12:13 madhyāhna ends
10:3711:0111:2511:4912:1312:3713:01

0 of 48 minutes covered

Midday of Saturday 17 March

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:25  12:13 madhyāhna ends
10:3711:0111:2511:4912:1312:3713:01

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 15:57 on Fri 16 Mar to 17:43 on Sat 17 Mar.

    2001-03-16T07:57:05Z → 2001-03-17T09:43:08Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:25–12:13 on the 16th, 11:25–12:13 on the 17th.

    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 16th and 48 of 48 on the 17th.

    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 13439 s

  5. 05

    Ruling

    Śītalāṣṭamī, Daqing, 2001: Saturday 17 March.

    confidence: determinate

Say it like this

In Daqing, Śītalāṣṭamī 2001 falls on Saturday 17 March. Aṣṭamī runs from 15:57 on Fri 16 Mar to 17:43 on Sat 17 Mar and covers all of madhyāhna that midday.

ahargana.org/daqing/festivals/2001/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 17 Mar
Ahargaṇa, classicalDisc centre, no refractionSat 17 Mar
compat-drikpanchangComparison profileSat 17 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 16thCoveredMadhyāhna 17thCoveredRuled
Los Angeles23:57 → 01:4311:3848 min11:370 min16 Mar
Chicago01:57 → 03:4311:3548 min11:350 min16 Mar
Jersey City02:57 → 04:4311:4148 min11:410 min16 Mar
Port of Spain03:57 → 05:4311:5148 min11:500 min16 Mar
London07:57 → 09:4311:4648 min11:450 min16 Mar
Durban09:57 → 11:4311:4048 min11:403 min16 Mar
Dubai11:57 → 13:4312:0448 min12:0348 min16 Mar
Delhi13:27 → 15:1312:060 min12:0648 min17 Mar
Kolkata13:27 → 15:1311:210 min11:2148 min17 Mar
Singapore15:57 → 17:4312:490 min12:4948 min17 Mar
Sydney18:57 → 20:4312:400 min12:3948 min17 Mar
Suva19:57 → 21:4311:510 min11:5148 min17 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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