Ruling · Śītalā Saptamī · 1920

Sunday 5 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 202 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 4 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 Sunday 5 September

Taken. The only midday Saptamī reaches.

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

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 17:45 on Sat 4 Sep to 16:03 on Sun 5 Sep.

    1920-09-04T09:45:00Z → 1920-09-05T08:02:39Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 4th, 11:53–12:41 on the 5th.

    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 4th and 48 of 48 on the 5th.

    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 12123 s

  5. 05

    Ruling

    Śītalā Saptamī, Baoding, 1920: Sunday 5 September.

    confidence: determinate

Say it like this

In Baoding, Śītalā Saptamī 1920 falls on Sunday 5 September. Saptamī runs from 17:45 on Sat 4 Sep to 16:03 on Sun 5 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1920/shitala-saptami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 5 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 5 Sep
compat-drikpanchangComparison profileSun 5 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 4thCoveredMadhyāhna 5thCoveredRuled
Los Angeles01:45 → 00:0311:2848 min11:270 min4 Sep
Chicago04:45 → 03:0312:2548 min12:250 min4 Sep
Jersey City05:45 → 04:0312:3148 min12:310 min4 Sep
Port of Spain05:45 → 04:0311:4148 min11:410 min4 Sep
London10:45 → 09:0312:3548 min12:350 min4 Sep
Durban11:45 → 10:0311:3134 min11:310 min4 Sep
Dubai13:45 → 12:0311:540 min11:539 min5 Sep
Delhi15:15 → 13:3311:560 min11:5648 min5 Sep
Kolkata15:15 → 13:3311:110 min11:1148 min5 Sep
Singapore16:45 → 15:0311:400 min11:3948 min5 Sep
Sydney19:45 → 18:0311:310 min11:3048 min5 Sep
Suva21:45 → 20:0311:420 min11:4148 min5 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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