Ruling · Gaṅgotpatti (Ganga Saptami) · 1921

Saturday 14 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 7 min 39 s.

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 13 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 Saturday 14 May

Taken. The only midday Saptamī reaches.

madhyāhna begins 11:51  12:39 madhyāhna ends
Saptamī ends 12:30:58
11:0311:2711:5112:1512:3913:0313:27

40 of 48 minutes covered, the first 40

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

How it was decided

  1. 01

    Aṅga

    Saptamī runs from 14:54 on Fri 13 May to 12:31 on Sat 14 May.

    1921-05-13T06:53:35Z → 1921-05-14T04:30:59Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 13th, 11:51–12:39 on the 14th.

    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 13th and 40 of 48 on the 14th.

    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 459 s

  5. 05

    Ruling

    Gaṅgotpatti, Baoding, 1921: Saturday 14 May.

    confidence: determinate

Say it like this

In Baoding, Gaṅgotpatti (Ganga Saptami) 1921 falls on Saturday 14 May. Saptamī runs from 14:54 on Fri 13 May to 12:31 on Sat 14 May and covers 40 of 48 minutes of madhyāhna that midday.

ahargana.org/baoding/festivals/1921/gangotpatti · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 14 May
Ahargaṇa, classicalDisc centre, no refractionSat 14 May
compat-drikpanchangComparison profileSat 14 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 13thCoveredMadhyāhna 14thCoveredRuled
Los Angeles22:54 → 20:3111:2548 min11:250 min13 May
Chicago01:54 → 23:3112:2348 min12:230 min13 May
Jersey City02:54 → 00:3112:2948 min12:290 min13 May
Port of Spain02:54 → 00:3111:3848 min11:380 min13 May
London07:54 → 05:3112:3348 min12:330 min13 May
Durban08:54 → 06:3111:2848 min11:280 min13 May
Dubai10:54 → 08:3111:5148 min11:510 min13 May
Delhi12:24 → 10:0111:5318 min11:530 min13 May
Kolkata12:24 → 10:0111:090 min11:090 min14 May
Singapore13:54 → 11:3111:370 min11:370 min14 May
Sydney16:54 → 14:3111:270 min11:2748 min14 May
Suva18:54 → 16:3111:380 min11:3848 min14 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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