Ruling · Śītalā Saptamī · 1987

Saturday 15 August

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 473 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 Saturday 15 August

Taken. The only midday Saptamī reaches.

madhyāhna begins 12:58  13:46 madhyāhna ends
12:1012:3412:5813:2213:4614:1014:34

48 of 48 minutes covered

Midday of Sunday 16 August

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 12:58  13:46 madhyāhna ends
12:1012:3412:5813:2213:4614:1014:34

0 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 05:00 on Sat 15 Aug to 05:05 on Sun 16 Aug.

    1987-08-14T20:00:07Z → 1987-08-15T20:05:26Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 12:58–13:46 on the 15th, 12:58–13:46 on the 16th.

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

  3. 03

    Rule

    Saptamī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.

    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 28369 s

  5. 05

    Ruling

    Śītalā Saptamī, Baoding, 1987: Saturday 15 August.

    confidence: determinate

Say it like this

In Baoding, Śītalā Saptamī 1987 falls on Saturday 15 August. Saptamī runs from 05:00 on Sat 15 Aug to 05:05 on Sun 16 Aug and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1987/shitala-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 15 Aug
Ahargaṇa, classicalDisc centre, no refractionSat 15 Aug
compat-drikpanchangComparison profileSat 15 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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles13:00 → 13:0512:3321 min12:3332 min14 Aug
Chicago15:00 → 15:0512:310 min12:3148 min15 Aug
Jersey City16:00 → 16:0512:370 min12:3648 min15 Aug
Port of Spain16:00 → 16:0511:470 min11:4748 min15 Aug
London21:00 → 21:0512:410 min12:4148 min15 Aug
Durban22:00 → 22:0511:370 min11:3748 min15 Aug
Dubai00:00 → 00:0511:590 min11:5948 min15 Aug
Delhi01:30 → 01:3512:020 min12:0148 min15 Aug
Kolkata01:30 → 01:3511:170 min11:1748 min15 Aug
Singapore04:00 → 04:0512:450 min12:4548 min15 Aug
Sydney06:00 → 06:0511:360 min11:3648 min15 Aug
Suva08:00 → 08:0511:470 min11:4748 min15 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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