Ruling · Śītalāṣṭamī · 1955

Wednesday 16 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 42 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 Wednesday 16 March

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

madhyāhna begins 12:03  12:51 madhyāhna ends
Aṣṭamī begins 11:21:08
11:1511:3912:0312:2712:5113:1513:39

48 of 48 minutes covered

Midday of Thursday 17 March

Qualifies with 48 of 48 minutes. Not taken.

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

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 11:21 on Wed 16 Mar to 13:45 on Thu 17 Mar.

    1955-03-16T03:21:08Z → 1955-03-17T05:45:29Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:03–12:51 on the 16th, 12:03–12:51 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 48 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

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 2539 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 1955: Wednesday 16 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 1955 falls on Wednesday 16 March. Aṣṭamī runs from 11:21 on Wed 16 Mar to 13:45 on Thu 17 Mar and covers all of madhyāhna that midday. It also reaches the next midday for 48 minutes; by the rule the first midday is taken.

ahargana.org/baoding/festivals/1955/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 16 Mar
Ahargaṇa, classicalDisc centre, no refractionWed 16 Mar
compat-drikpanchangComparison profileWed 16 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 Angeles19:21 → 21:4511:3848 min11:380 min16 Mar
Chicago21:21 → 23:4511:3648 min11:350 min16 Mar
Jersey City22:21 → 00:4511:4148 min11:410 min16 Mar
Port of Spain23:21 → 01:4511:5148 min11:510 min16 Mar
London03:21 → 05:4511:4648 min11:460 min16 Mar
Durban05:21 → 07:4511:4148 min11:400 min16 Mar
Dubai07:21 → 09:4512:0448 min12:040 min16 Mar
Delhi08:51 → 11:1512:0648 min12:060 min16 Mar
Kolkata08:51 → 11:1511:2248 min11:210 min16 Mar
Singapore10:51 → 13:1512:2048 min12:1948 min16 Mar
Sydney13:21 → 15:4511:400 min11:4048 min17 Mar
Suva15:21 → 17:4511:510 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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