Ruling · Śītalāṣṭamī · 1979

Wednesday 21 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 236 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 21 March

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 12:02  12:50 madhyāhna ends
11:1411:3812:0212:2612:5013:1413:38

48 of 48 minutes covered

Midday of Thursday 22 March

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:02  12:50 madhyāhna ends
11:1411:3812:0212:2612:5013:1413:38

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 08:06 on Wed 21 Mar to 06:31 on Thu 22 Mar.

    1979-03-21T00:05:45Z → 1979-03-21T22:31:12Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:02–12:50 on the 21st, 12:02–12:50 on the 22nd.

    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 21st and 0 of 48 on the 22nd.

    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 14171 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 1979: Wednesday 21 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 1979 falls on Wednesday 21 March. Aṣṭamī runs from 08:06 on Wed 21 Mar to 06:31 on Thu 22 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1979/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 21 Mar
Ahargaṇa, classicalDisc centre, no refractionWed 21 Mar
compat-drikpanchangComparison profileWed 21 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 21stCoveredMadhyāhna 22ndCoveredRuled
Los Angeles16:06 → 14:3111:3748 min11:360 min21 Mar
Chicago18:06 → 16:3111:3448 min11:340 min21 Mar
Jersey City19:06 → 17:3111:4048 min11:400 min21 Mar
Port of Spain20:06 → 18:3111:4948 min11:490 min21 Mar
London01:06 → 23:3112:4448 min12:440 min21 Mar
Durban02:06 → 00:3111:3948 min11:390 min21 Mar
Dubai04:06 → 02:3112:0248 min12:020 min21 Mar
Delhi05:36 → 04:0112:0548 min12:040 min21 Mar
Kolkata05:36 → 04:0111:2048 min11:200 min21 Mar
Singapore07:36 → 06:0112:1848 min12:180 min21 Mar
Sydney10:06 → 08:3111:3848 min11:380 min21 Mar
Suva12:06 → 10:3111:5032 min11:490 min21 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

About Ahargaṇa