Ruling · Rādhāṣṭamī · 1928

Saturday 22 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 551 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 Friday 21 September

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:47  12:35 madhyāhna ends
10:5911:2311:4712:1112:3512:5913:23

0 of 48 minutes covered

Midday of Saturday 22 September

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:47  12:35 madhyāhna ends
10:5911:2311:4712:1112:3512:5913:23

48 of 48 minutes covered

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

How it was decided

  1. 01

    Aṅga

    Aṣṭamī runs from 21:46 on Fri 21 Sep to 00:02 on Sun 23 Sep.

    1928-09-21T13:46:03Z → 1928-09-22T16:02:29Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:47–12:35 on the 21st, 11:47–12:35 on the 22nd.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Aṣṭamī 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. 103

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 33061 s

  5. 05

    Ruling

    Rādhāṣṭamī, Baoding, 1928: Saturday 22 September.

    confidence: determinate

Say it like this

In Baoding, Rādhāṣṭamī 1928 falls on Saturday 22 September. Aṣṭamī runs from 21:46 on Fri 21 Sep to 00:02 on Sun 23 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1928/radhashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 22 Sep
Ahargaṇa, classicalDisc centre, no refractionSat 22 Sep
compat-drikpanchangComparison profileSat 22 Sep
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/radhashtami · ruleset 2026.3-draft

Month
Bhādrapada, amānta
Pakṣa · aṅga
Śukla · Aṣṭamī
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 103

“S 8 Durvastami (purvaviddha — S 8 of saura Bhadra except Bengal), Mahalaksmi vratarambha, Radhastami (madhyahna vyapini)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 103.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAṣṭamīMadhyāhna 21stCoveredMadhyāhna 22ndCoveredRuled
Los Angeles05:46 → 08:0211:2248 min11:210 min21 Sep
Chicago08:46 → 11:0212:1948 min12:190 min21 Sep
Jersey City09:46 → 12:0212:2548 min12:250 min21 Sep
Port of Spain09:46 → 12:0211:3548 min11:3528 min21 Sep
London14:46 → 17:0212:290 min12:2948 min22 Sep
Durban15:46 → 18:0211:250 min11:2548 min22 Sep
Dubai17:46 → 20:0211:480 min11:4748 min22 Sep
Delhi19:16 → 21:3211:500 min11:5048 min22 Sep
Kolkata19:16 → 21:3211:060 min11:0548 min22 Sep
Singapore20:46 → 23:0211:340 min11:3348 min22 Sep
Sydney23:46 → 02:0211:250 min11:2448 min22 Sep
Suva01:46 → 04:0211:360 min11:3548 min22 Sep
Profile · tradition
pac-rp@2026.1 · smarta
Rule
radhashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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