Ruling · Gaṅgotpatti (Ganga Saptami) · 2087

Thursday 8 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 132 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 8 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

Midday of Friday 9 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

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 09:40 on Thu 8 May to 09:09 on Fri 9 May.

    2087-05-08T01:39:31Z → 2087-05-09T01:08:48Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 8th, 11:51–12:39 on the 9th.

    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 8th and 0 of 48 on the 9th.

    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 7907 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 2087: Thursday 8 May.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 2087 falls on Thursday 8 May. Saptamī runs from 09:40 on Thu 8 May to 09:09 on Fri 9 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/2087/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 8 May
Ahargaṇa, classicalDisc centre, no refractionThu 8 May
compat-drikpanchangComparison profileThu 8 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 8thCoveredMadhyāhna 9thCoveredRuled
Los Angeles18:40 → 18:0912:2648 min12:260 min8 May
Chicago20:40 → 20:0912:2448 min12:240 min8 May
Jersey City21:40 → 21:0912:2948 min12:290 min8 May
Port of Spain21:40 → 21:0911:3948 min11:390 min8 May
London02:40 → 02:0912:3448 min12:340 min8 May
Durban03:40 → 03:0911:2948 min11:290 min8 May
Dubai05:40 → 05:0911:5248 min11:520 min8 May
Delhi07:10 → 06:3911:5448 min11:540 min8 May
Kolkata07:10 → 06:3911:1048 min11:090 min8 May
Singapore09:40 → 09:0912:3748 min12:370 min8 May
Sydney11:40 → 11:0911:2836 min11:280 min8 May
Suva13:40 → 13:0911:390 min11:3948 min9 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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