Ruling · Śītalā Saptamī · 1966

Wednesday 7 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 511 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 Tuesday 6 September

Saptamī is absent from madhyāhna. Not taken.

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

0 of 48 minutes covered

Midday of Wednesday 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 21:12 on Tue 6 Sep to 22:00 on Wed 7 Sep.

    1966-09-06T13:11:41Z → 1966-09-07T13:59:45Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 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 30678 s

  5. 05

    Ruling

    Śītalā Saptamī, Baoding, 1966: Wednesday 7 September.

    confidence: determinate

Say it like this

In Baoding, Śītalā Saptamī 1966 falls on Wednesday 7 September. Saptamī runs from 21:12 on Tue 6 Sep to 22:00 on Wed 7 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1966/shitala-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 7 Sep
Ahargaṇa, classicalDisc centre, no refractionWed 7 Sep
compat-drikpanchangComparison profileWed 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 Angeles06:12 → 07:0012:2748 min12:270 min6 Sep
Chicago08:12 → 09:0012:2548 min12:240 min6 Sep
Jersey City09:12 → 10:0012:3048 min12:300 min6 Sep
Port of Spain09:12 → 10:0011:4048 min11:400 min6 Sep
London14:12 → 15:0012:340 min12:3448 min7 Sep
Durban15:12 → 16:0011:310 min11:3048 min7 Sep
Dubai17:12 → 18:0011:530 min11:5348 min7 Sep
Delhi18:42 → 19:3011:550 min11:5548 min7 Sep
Kolkata18:42 → 19:3011:110 min11:1148 min7 Sep
Singapore20:42 → 21:3012:090 min12:0948 min7 Sep
Sydney23:12 → 00:0011:300 min11:3048 min7 Sep
Suva01:12 → 02:0011:410 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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