Ruling · Gaṅgotpatti (Ganga Saptami) · 2066

Saturday 1 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 15 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 1 May

Taken. Both middays qualify; the rule takes the first.

madhyāhna begins 11:52  12:40 madhyāhna ends
11:0411:2811:5212:1612:4013:0413:28

48 of 48 minutes covered

Midday of Sunday 2 May

Qualifies with 15 of 48 minutes. Not taken.

madhyāhna begins 11:52  12:40 madhyāhna ends
Saptamī ends 12:07:02
11:0411:2811:5212:1612:4013:0413:28

15 of 48 minutes covered, the first 15

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 09:59 on Sat 1 May to 12:07 on Sun 2 May.

    2066-05-01T01:59:26Z → 2066-05-02T04:07:02Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:52–12:40 on the 1st, 11:52–12:40 on the 2nd.

    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 1st and 15 of 48 on the 2nd.

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

  4. 04

    Tie-break

    Both middays qualify. Pūrvaviddhā: the first is taken.

    priority: purvaviddha → purvaviddha · margin 925 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 2066: Saturday 1 May.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 2066 falls on Saturday 1 May. Saptamī runs from 09:59 on Sat 1 May to 12:07 on Sun 2 May and covers all of madhyāhna that midday. It also reaches the next midday for 15 minutes; by the rule the first midday is taken.

ahargana.org/baoding/festivals/2066/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 1 May
Ahargaṇa, classicalDisc centre, no refractionSat 1 May
compat-drikpanchangComparison profileSat 1 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 1stCoveredMadhyāhna 2ndCoveredRuled
Los Angeles18:59 → 21:0712:2648 min12:260 min1 May
Chicago20:59 → 23:0712:2448 min12:240 min1 May
Jersey City21:59 → 00:0712:3048 min12:300 min1 May
Port of Spain21:59 → 00:0711:3948 min11:390 min1 May
London02:59 → 05:0712:3448 min12:340 min1 May
Durban03:59 → 06:0711:2948 min11:290 min1 May
Dubai05:59 → 08:0711:5248 min11:520 min1 May
Delhi07:29 → 09:3711:5548 min11:540 min1 May
Kolkata07:29 → 09:3711:1048 min11:100 min1 May
Singapore09:59 → 12:0712:3848 min12:380 min1 May
Sydney11:59 → 14:0711:2817 min11:2848 min1 May
Suva13:59 → 16:0711:390 min11:3948 min2 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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