Ruling · Śītalāṣṭamī · 2010

Sunday 7 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 18 minutes.

Decide it for

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 Sunday 7 March

Taken. Both middays qualify; the rule takes the first.

madhyāhna begins 12:06  12:54 madhyāhna ends
11:1811:4212:0612:3012:5413:1813:42

48 of 48 minutes covered

Midday of Monday 8 March

Qualifies with 18 of 48 minutes. Not taken.

madhyāhna begins 12:05  12:53 madhyāhna ends
Aṣṭamī ends 12:23:32
11:1711:4112:0512:2912:5313:1713:41

18 of 48 minutes covered, the first 18

Aṣṭamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 11:12 on Sun 7 Mar to 12:24 on Mon 8 Mar.

    2010-03-07T03:11:44Z → 2010-03-08T04:23:32Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:06–12:54 on the 7th, 12:05–12:53 on the 8th.

    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 7th and 18 of 48 on the 8th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 105

  4. 04

    Tie-break

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 1093 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 2010: Sunday 7 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 2010 falls on Sunday 7 March. Aṣṭamī runs from 11:12 on Sun 7 Mar to 12:24 on Mon 8 Mar and covers all of madhyāhna that midday. It also reaches the next midday for 18 minutes; by the rule the first midday is taken.

ahargana.org/baoding/festivals/2010/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 7 Mar
Ahargaṇa, classicalDisc centre, no refractionSun 7 Mar
compat-drikpanchangComparison profileSun 7 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 7thCoveredMadhyāhna 8thCoveredRuled
Los Angeles19:12 → 20:2411:4048 min11:400 min7 Mar
Chicago21:12 → 22:2411:3848 min11:380 min7 Mar
Jersey City22:12 → 23:2411:4448 min11:430 min7 Mar
Port of Spain23:12 → 00:2411:5348 min11:530 min7 Mar
London03:12 → 04:2411:4848 min11:480 min7 Mar
Durban05:12 → 06:2411:4348 min11:420 min7 Mar
Dubai07:12 → 08:2412:0648 min12:060 min7 Mar
Delhi08:42 → 09:5412:0848 min12:080 min7 Mar
Kolkata08:42 → 09:5411:2448 min11:240 min7 Mar
Singapore11:12 → 12:2412:5248 min12:510 min7 Mar
Sydney14:12 → 15:2412:420 min12:4248 min8 Mar
Suva16:12 → 17:2412:530 min12:5348 min8 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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