Ruling · Śītalāṣṭamī · 2039

Thursday 17 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 299 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 Thursday 17 March

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 12:03  12:51 madhyāhna ends
11:1511:3912:0312:2712:5113:1513:39

48 of 48 minutes covered

Midday of Friday 18 March

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:03  12:51 madhyāhna ends
11:1511:3912:0312:2712:5113:1513:39

0 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 07:04 on Thu 17 Mar to 05:16 on Fri 18 Mar.

    2039-03-16T23:03:58Z → 2039-03-17T21:16:14Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:03–12:51 on the 17th, 12:03–12:51 on the 18th.

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

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 0 of 48 on the 18th.

    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 17938 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 2039: Thursday 17 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 2039 falls on Thursday 17 March. Aṣṭamī runs from 07:04 on Thu 17 Mar to 05:16 on Fri 18 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2039/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 17 Mar
Ahargaṇa, classicalDisc centre, no refractionThu 17 Mar
compat-drikpanchangComparison profileThu 17 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 16thCoveredMadhyāhna 17thCoveredRuled
Los Angeles16:04 → 14:1612:380 min12:3848 min17 Mar
Chicago18:04 → 16:1612:360 min12:3548 min17 Mar
Jersey City19:04 → 17:1612:410 min12:4148 min17 Mar
Port of Spain19:04 → 17:1611:510 min11:5048 min17 Mar
London23:04 → 21:1611:460 min11:4548 min17 Mar
Durban01:04 → 23:1611:400 min11:4048 min17 Mar
Dubai03:04 → 01:1612:040 min12:0348 min17 Mar
Delhi04:34 → 02:4612:060 min12:0648 min17 Mar
Kolkata04:34 → 02:4611:210 min11:2148 min17 Mar
Singapore07:04 → 05:1612:490 min12:4948 min17 Mar
Sydney10:04 → 08:1612:400 min12:3948 min17 Mar
Suva11:04 → 09:1611:510 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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