Ruling · Gaṅgotpatti (Ganga Saptami) · 2070

Friday 16 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 616 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 Thursday 15 May

Saptamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

0 of 48 minutes covered

Midday of Friday 16 May

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

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 00:16 on Fri 16 May to 22:55 on Fri 16 May.

    2070-05-15T16:15:46Z → 2070-05-16T14:54:58Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 15th, 11:51–12:39 on the 16th.

    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 15th and 48 of 48 on the 16th.

    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 36956 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 2070: Friday 16 May.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 2070 falls on Friday 16 May. Saptamī runs from 00:16 on Fri 16 May to 22:55 on Fri 16 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2070/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 16 May
Ahargaṇa, classicalDisc centre, no refractionFri 16 May
compat-drikpanchangComparison profileFri 16 May
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 15thCoveredMadhyāhna 16thCoveredRuled
Los Angeles09:16 → 07:5512:2648 min12:260 min15 May
Chicago11:16 → 09:5512:2448 min12:240 min15 May
Jersey City12:16 → 10:5512:2948 min12:290 min15 May
Port of Spain12:16 → 10:5511:3911 min11:390 min15 May
London17:16 → 15:5512:340 min12:3448 min16 May
Durban18:16 → 16:5511:280 min11:2848 min16 May
Dubai20:16 → 18:5511:520 min11:5248 min16 May
Delhi21:46 → 20:2511:540 min11:5448 min16 May
Kolkata21:46 → 20:2511:090 min11:0948 min16 May
Singapore00:16 → 22:5512:370 min12:3748 min16 May
Sydney02:16 → 00:5511:280 min11:2848 min16 May
Suva04:16 → 02:5511:390 min11:3948 min16 May
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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