Ruling · Śītalāṣṭamī · 1912

Monday 11 March

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 121 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 10 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 11 March

Taken. The only midday Aṣṭamī reaches.

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

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 14:54 on Sun 10 Mar to 17:02 on Mon 11 Mar.

    1912-03-10T06:54:17Z → 1912-03-11T09:02:11Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:05–12:53 on the 10th, 12:05–12:53 on the 11th.

    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 10th and 48 of 48 on the 11th.

    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 7276 s

  5. 05

    Ruling

    Śītalāṣṭamī, Baoding, 1912: Monday 11 March.

    confidence: determinate

Say it like this

In Baoding, Śītalāṣṭamī 1912 falls on Monday 11 March. Aṣṭamī runs from 14:54 on Sun 10 Mar to 17:02 on Mon 11 Mar and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1912/shitalashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 11 Mar
Ahargaṇa, classicalDisc centre, no refractionMon 11 Mar
compat-drikpanchangComparison profileMon 11 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 10thCoveredMadhyāhna 11thCoveredRuled
Los Angeles22:54 → 01:0211:4048 min11:390 min10 Mar
Chicago00:54 → 03:0211:3748 min11:370 min10 Mar
Jersey City01:54 → 04:0211:4348 min11:430 min10 Mar
Port of Spain02:54 → 05:0211:5348 min11:520 min10 Mar
London06:54 → 09:0211:4748 min11:470 min10 Mar
Durban08:54 → 11:0211:4248 min11:420 min10 Mar
Dubai10:35 → 12:4311:4648 min11:4648 min10 Mar
Delhi12:24 → 14:3212:0832 min12:0848 min10 Mar
Kolkata12:24 → 14:3211:230 min11:2348 min11 Mar
Singapore13:54 → 16:0211:510 min11:5148 min11 Mar
Sydney16:54 → 19:0211:410 min11:4148 min11 Mar
Suva18:49 → 20:5711:480 min11:4848 min11 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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