Ruling · Śītalā Saptamī · 2099

Monday 7 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 198 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 6 September

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:53  12:41 madhyāhna ends
11:0511:2911:5312:1712:4113:0513:29

0 of 48 minutes covered

Midday of Monday 7 September

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

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 15:59 on Sun 6 Sep to 17:03 on Mon 7 Sep.

    2099-09-06T07:58:39Z → 2099-09-07T09:03:28Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 6th, 11:52–12:40 on the 7th.

    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 6th and 48 of 48 on the 7th.

    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 11881 s

  5. 05

    Ruling

    Śītalā Saptamī, Baoding, 2099: Monday 7 September.

    confidence: determinate

Say it like this

In Baoding, Śītalā Saptamī 2099 falls on Monday 7 September. Saptamī runs from 15:59 on Sun 6 Sep to 17:03 on Mon 7 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2099/shitala-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 7 Sep
Ahargaṇa, classicalDisc centre, no refractionMon 7 Sep
compat-drikpanchangComparison profileMon 7 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 6thCoveredMadhyāhna 7thCoveredRuled
Los Angeles00:59 → 02:0312:2748 min12:270 min6 Sep
Chicago02:59 → 04:0312:2548 min12:250 min6 Sep
Jersey City03:59 → 05:0312:3148 min12:300 min6 Sep
Port of Spain03:59 → 05:0311:4148 min11:400 min6 Sep
London08:59 → 10:0312:3548 min12:340 min6 Sep
Durban09:59 → 11:0311:3148 min11:300 min6 Sep
Dubai11:59 → 13:0311:5343 min11:5348 min6 Sep
Delhi13:29 → 14:3311:560 min11:5548 min7 Sep
Kolkata13:29 → 14:3311:110 min11:1148 min7 Sep
Singapore15:59 → 17:0312:390 min12:3948 min7 Sep
Sydney17:59 → 19:0311:300 min11:3048 min7 Sep
Suva19:59 → 21:0311:410 min11:4148 min7 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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