Ruling · Gaṅgotpatti (Ganga Saptami) · 1917

Saturday 28 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 553 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

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 Friday 27 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

Midday of Saturday 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

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 21:53 on Fri 27 Apr to 00:07 on Sun 29 Apr.

    1917-04-27T13:53:06Z → 1917-04-28T16:07:25Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 27th, 11:52–12:40 on the 28th.

    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 27th and 48 of 48 on the 28th.

    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 33176 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 1917: Saturday 28 April.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 1917 falls on Saturday 28 April. Saptamī runs from 21:53 on Fri 27 Apr to 00:07 on Sun 29 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1917/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 28 Apr
Ahargaṇa, classicalDisc centre, no refractionSat 28 Apr
compat-drikpanchangComparison profileSat 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 Angeles05:53 → 08:0711:2748 min11:270 min27 Apr
Chicago07:53 → 10:0711:2548 min11:240 min27 Apr
Jersey City08:53 → 11:0711:3048 min11:300 min27 Apr
Port of Spain09:53 → 12:0711:4048 min11:4028 min27 Apr
London14:53 → 17:0712:350 min12:3548 min28 Apr
Durban15:53 → 18:0711:290 min11:2948 min28 Apr
Dubai17:34 → 19:4811:340 min11:3348 min28 Apr
Delhi19:23 → 21:3711:550 min11:5548 min28 Apr
Kolkata19:23 → 21:3711:100 min11:1048 min28 Apr
Singapore20:53 → 23:0711:380 min11:3848 min28 Apr
Sydney23:53 → 02:0711:290 min11:2948 min28 Apr
Suva01:53 → 04:0711:400 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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