Ruling · Śītalāṣṭamī · 1970

Monday 30 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 241 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 Monday 30 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 Tuesday 31 March

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 07:58 on Mon 30 Mar to 06:06 on Tue 31 Mar.

    1970-03-29T23:58:06Z → 1970-03-30T22:05:58Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 30th, 11:59–12:47 on the 31st.

    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 30th and 0 of 48 on the 31st.

    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 14463 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 1970: Monday 30 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 1970 falls on Monday 30 March. Aṣṭamī runs from 07:58 on Mon 30 Mar to 06:06 on Tue 31 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1970/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 30 Mar
Ahargaṇa, classicalDisc centre, no refractionMon 30 Mar
compat-drikpanchangComparison profileMon 30 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 29thCoveredMadhyāhna 30thCoveredRuled
Los Angeles15:58 → 14:0611:340 min11:3448 min30 Mar
Chicago17:58 → 16:0611:320 min11:3148 min30 Mar
Jersey City18:58 → 17:0611:370 min11:3748 min30 Mar
Port of Spain19:58 → 18:0611:470 min11:4748 min30 Mar
London00:58 → 23:0612:420 min12:4248 min30 Mar
Durban01:58 → 00:0611:370 min11:3648 min30 Mar
Dubai03:58 → 02:0612:000 min12:0048 min30 Mar
Delhi05:28 → 03:3612:020 min12:0248 min30 Mar
Kolkata05:28 → 03:3611:180 min11:1748 min30 Mar
Singapore07:28 → 05:3612:160 min12:1548 min30 Mar
Sydney09:58 → 08:0611:360 min11:3648 min30 Mar
Suva11:58 → 10:0611:470 min11:4737 min30 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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