Ruling · Gaṅgotpatti (Ganga Saptami) · 1955

Thursday 28 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 552 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 Thursday 28 April

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

Midday of Friday 29 April

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

Saptamī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 02:40 on Thu 28 Apr to 01:00 on Fri 29 Apr.

    1955-04-27T18:39:40Z → 1955-04-28T16:59:49Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 28th, 11:52–12:40 on the 29th.

    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 28th and 0 of 48 on the 29th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: purvaviddha → only-day · margin 33145 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 1955: Thursday 28 April.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 1955 falls on Thursday 28 April. Saptamī runs from 02:40 on Thu 28 Apr to 01:00 on Fri 29 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1955/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 28 Apr
Ahargaṇa, classicalDisc centre, no refractionThu 28 Apr
compat-drikpanchangComparison profileThu 28 Apr
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/gangotpatti · ruleset 2026.3-draft

Month
Vaiśākha, amānta
Pakṣa · aṅga
Śukla · Saptamī
Kāla
Madhyāhna
Priority
Pūrvaviddhā
Tie-break
First day
Reference
CRC 1955, p. 102

“S 7 Gangotpatti, (madhyahna vyapini, if occurs on two successive days, the first day is to be observed), Jahnu saptami, Sarkara saptami.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceSaptamīMadhyāhna 27thCoveredMadhyāhna 28thCoveredRuled
Los Angeles11:40 → 10:0012:2748 min12:270 min27 Apr
Chicago13:40 → 12:0012:250 min12:240 min28 Apr
Jersey City14:40 → 13:0012:300 min12:3030 min28 Apr
Port of Spain14:40 → 13:0011:400 min11:4048 min28 Apr
London19:40 → 18:0012:350 min12:3548 min28 Apr
Durban20:40 → 19:0011:290 min11:2948 min28 Apr
Dubai22:40 → 21:0011:530 min11:5348 min28 Apr
Delhi00:10 → 22:3011:550 min11:5548 min28 Apr
Kolkata00:10 → 22:3011:100 min11:1048 min28 Apr
Singapore02:10 → 00:3012:080 min12:0848 min28 Apr
Sydney04:40 → 03:0011:290 min11:2948 min28 Apr
Suva06:40 → 05:0011:400 min11:4048 min28 Apr
Profile · tradition
pac-rp@2026.1 · smarta
Rule
gangotpatti@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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