Ruling · Śītalāṣṭamī · 1939

Monday 13 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 239 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 Sunday 12 March

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:05  12:53 madhyāhna ends
11:1711:4112:0512:2912:5313:1713:41

0 of 48 minutes covered

Midday of Monday 13 March

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 12:04  12:52 madhyāhna ends
11:1611:4012:0412:2812:5213:1613:40

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 16:52 on Sun 12 Mar to 18:32 on Mon 13 Mar.

    1939-03-12T08:51:44Z → 1939-03-13T10:31:42Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 12th, 12:04–12:52 on the 13th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 0 of 48 minutes on the 12th and 48 of 48 on the 13th.

    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 14348 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 1939: Monday 13 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 1939 falls on Monday 13 March. Aṣṭamī runs from 16:52 on Sun 12 Mar to 18:32 on Mon 13 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1939/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 13 Mar
Ahargaṇa, classicalDisc centre, no refractionMon 13 Mar
compat-drikpanchangComparison profileMon 13 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 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles00:52 → 02:3211:3948 min11:390 min12 Mar
Chicago02:52 → 04:3211:3748 min11:370 min12 Mar
Jersey City03:52 → 05:3211:4348 min11:420 min12 Mar
Port of Spain04:52 → 06:3211:5248 min11:520 min12 Mar
London08:52 → 10:3211:4748 min11:470 min12 Mar
Durban10:52 → 12:3211:4248 min11:4148 min12 Mar
Dubai12:52 → 14:3212:051 min12:0548 min12 Mar
Delhi14:22 → 16:0212:070 min12:0748 min13 Mar
Kolkata14:22 → 16:0211:230 min11:2348 min13 Mar
Singapore16:12 → 17:5212:110 min12:1048 min13 Mar
Sydney18:52 → 20:3211:410 min11:4148 min13 Mar
Suva20:52 → 22:3211:520 min11:5248 min13 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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