Ruling · Gaṅgotpatti (Ganga Saptami) · 2018

Sunday 22 April

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 366 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 Saturday 21 April

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 22 April

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 20:58 on Sat 21 Apr to 18:47 on Sun 22 Apr.

    2018-04-21T12:57:52Z → 2018-04-22T10:47:22Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 21st, 11:53–12:41 on the 22nd.

    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 21st and 48 of 48 on the 22nd.

    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 21979 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 2018: Sunday 22 April.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 2018 falls on Sunday 22 April. Saptamī runs from 20:58 on Sat 21 Apr to 18:47 on Sun 22 Apr and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2018/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 22 Apr
Ahargaṇa, classicalDisc centre, no refractionSun 22 Apr
compat-drikpanchangComparison profileSun 22 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 21stCoveredMadhyāhna 22ndCoveredRuled
Los Angeles05:58 → 03:4712:2848 min12:280 min21 Apr
Chicago07:58 → 05:4712:2648 min12:250 min21 Apr
Jersey City08:58 → 06:4712:3148 min12:310 min21 Apr
Port of Spain08:58 → 06:4711:4148 min11:410 min21 Apr
London13:58 → 11:4712:360 min12:360 min22 Apr
Durban14:58 → 12:4711:300 min11:3048 min22 Apr
Dubai16:58 → 14:4711:540 min11:5348 min22 Apr
Delhi18:28 → 16:1711:560 min11:5648 min22 Apr
Kolkata18:28 → 16:1711:110 min11:1148 min22 Apr
Singapore20:58 → 18:4712:390 min12:3948 min22 Apr
Sydney22:58 → 20:4711:300 min11:3048 min22 Apr
Suva00:58 → 22:4711:410 min11:4148 min22 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

About Ahargaṇa