Ruling · Śītalā Saptamī · 2018

Sunday 2 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 636 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 Saturday 1 September

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:54  12:42 madhyāhna ends
11:0611:3011:5412:1812:4213:0613:30

0 of 48 minutes covered

Midday of Sunday 2 September

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:54  12:42 madhyāhna ends
11:0611:3011:5412:1812:4213:0613:30

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 00:15 on Sun 2 Sep to 23:17 on Sun 2 Sep.

    2018-09-01T16:14:44Z → 2018-09-02T15:17:23Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:54–12:42 on the 1st, 11:54–12:42 on the 2nd.

    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 1st and 48 of 48 on the 2nd.

    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 38147 s

  5. 05

    Ruling

    Śītalā Saptamī, Baoding, 2018: Sunday 2 September.

    confidence: determinate

Say it like this

In Baoding, Śītalā Saptamī 2018 falls on Sunday 2 September. Saptamī runs from 00:15 on Sun 2 Sep to 23:17 on Sun 2 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2018/shitala-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 2 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 2 Sep
compat-drikpanchangComparison profileSun 2 Sep
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 1stCoveredMadhyāhna 2ndCoveredRuled
Los Angeles09:15 → 08:1712:2948 min12:280 min1 Sep
Chicago11:15 → 10:1712:2648 min12:260 min1 Sep
Jersey City12:15 → 11:1712:3248 min12:320 min1 Sep
Port of Spain12:15 → 11:1711:4215 min11:420 min1 Sep
London17:15 → 16:1712:360 min12:3648 min2 Sep
Durban18:15 → 17:1711:320 min11:3248 min2 Sep
Dubai20:15 → 19:1711:550 min11:5448 min2 Sep
Delhi21:45 → 20:4711:570 min11:5748 min2 Sep
Kolkata21:45 → 20:4711:120 min11:1248 min2 Sep
Singapore00:15 → 23:1712:410 min12:4048 min2 Sep
Sydney02:15 → 01:1711:320 min11:3148 min2 Sep
Suva04:15 → 03:1711:430 min11:4248 min2 Sep
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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