Ruling · Śītalāṣṭamī · 2073

Thursday 30 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 283 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 Thursday 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 Friday 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 07:06 on Thu 30 Mar to 07:16 on Fri 31 Mar.

    2073-03-29T23:05:44Z → 2073-03-30T23:15:58Z

  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 16963 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 2073: Thursday 30 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 2073 falls on Thursday 30 March. Aṣṭamī runs from 07:06 on Thu 30 Mar to 07:16 on Fri 31 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2073/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 30 Mar
Ahargaṇa, classicalDisc centre, no refractionThu 30 Mar
compat-drikpanchangComparison profileThu 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 Angeles16:06 → 16:1612:340 min12:3448 min30 Mar
Chicago18:06 → 18:1612:320 min12:3148 min30 Mar
Jersey City19:06 → 19:1612:370 min12:3748 min30 Mar
Port of Spain19:06 → 19:1611:470 min11:4748 min30 Mar
London00:06 → 00:1612:420 min12:4148 min30 Mar
Durban01:06 → 01:1611:360 min11:3648 min30 Mar
Dubai03:06 → 03:1612:000 min11:5948 min30 Mar
Delhi04:36 → 04:4612:020 min12:0248 min30 Mar
Kolkata04:36 → 04:4611:170 min11:1748 min30 Mar
Singapore07:06 → 07:1612:450 min12:4548 min30 Mar
Sydney10:06 → 10:1612:360 min12:3548 min30 Mar
Suva11:06 → 11:1611:470 min11:4748 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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