Ruling · Śītalāṣṭamī · 1959

Tuesday 31 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 246 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 Tuesday 31 March

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

48 of 48 minutes covered

Midday of Wednesday 1 April

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

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 07:53 on Tue 31 Mar to 06:28 on Wed 1 Apr.

    1959-03-30T23:53:09Z → 1959-03-31T22:28:08Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 31st, 11:59–12:47 on the 1st.

    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 31st and 0 of 48 on the 1st.

    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 14750 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 1959: Tuesday 31 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 1959 falls on Tuesday 31 March. Aṣṭamī runs from 07:53 on Tue 31 Mar to 06:28 on Wed 1 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1959/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 31 Mar
Ahargaṇa, classicalDisc centre, no refractionTue 31 Mar
compat-drikpanchangComparison profileTue 31 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 30thCoveredMadhyāhna 31stCoveredRuled
Los Angeles15:53 → 14:2811:340 min11:3448 min31 Mar
Chicago17:53 → 16:2811:320 min11:3148 min31 Mar
Jersey City18:53 → 17:2811:370 min11:3748 min31 Mar
Port of Spain19:53 → 18:2811:470 min11:4648 min31 Mar
London23:53 → 22:2811:420 min11:4148 min31 Mar
Durban01:53 → 00:2811:360 min11:3648 min31 Mar
Dubai03:53 → 02:2812:000 min11:5948 min31 Mar
Delhi05:23 → 03:5812:020 min12:0248 min31 Mar
Kolkata05:23 → 03:5811:170 min11:1748 min31 Mar
Singapore07:23 → 05:5812:150 min12:1548 min31 Mar
Sydney09:53 → 08:2811:360 min11:3548 min31 Mar
Suva11:53 → 10:2811:470 min11:4742 min31 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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