Ruling · Śītalā Saptamī · 2009

Thursday 13 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 160 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 12 August

Saptamī 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

Midday of Thursday 13 August

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:59  12:47 madhyāhna ends
11:1111:3511:5912:2312:4713:1113:35

48 of 48 minutes covered

Saptamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 16:03 on Wed 12 Aug to 15:27 on Thu 13 Aug.

    2009-08-12T08:02:35Z → 2009-08-13T07:26:30Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:59–12:47 on the 12th, 11:59–12:47 on the 13th.

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

  3. 03

    Rule

    Saptamī 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. 103

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 9587 s

  5. 05

    Ruling

    Śītalā Saptamī, Baoding, 2009: Thursday 13 August.

    confidence: determinate

Say it like this

In Baoding, Śītalā Saptamī 2009 falls on Thursday 13 August. Saptamī runs from 16:03 on Wed 12 Aug to 15:27 on Thu 13 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2009/shitala-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 13 Aug
Ahargaṇa, classicalDisc centre, no refractionThu 13 Aug
compat-drikpanchangComparison profileThu 13 Aug
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/shitala-saptami · ruleset 2026.3-draft

Month
Śrāvaṇa, amānta
Pakṣa · aṅga
Kṛṣṇa · Saptamī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 103

“K 7 Sitala saptami (purvaviddha).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceSaptamīMadhyāhna 12thCoveredMadhyāhna 13thCoveredRuled
Los Angeles01:03 → 00:2712:3448 min12:330 min12 Aug
Chicago03:03 → 02:2712:3148 min12:310 min12 Aug
Jersey City04:03 → 03:2712:3748 min12:370 min12 Aug
Port of Spain04:03 → 03:2711:4748 min11:470 min12 Aug
London09:03 → 08:2712:4148 min12:410 min12 Aug
Durban10:03 → 09:2711:3748 min11:370 min12 Aug
Dubai12:03 → 11:2712:0045 min11:590 min12 Aug
Delhi13:33 → 12:5712:020 min12:0248 min13 Aug
Kolkata13:33 → 12:5711:170 min11:1748 min13 Aug
Singapore16:03 → 15:2712:460 min12:4548 min13 Aug
Sydney18:03 → 17:2711:360 min11:3648 min13 Aug
Suva20:03 → 19:2711:470 min11:4748 min13 Aug
Profile · tradition
pac-rp@2026.1 · smarta
Rule
shitala-saptami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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