Ruling · Rādhāṣṭamī · 1926

Wednesday 15 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 675 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 Wednesday 15 September

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:49  12:37 madhyāhna ends
11:0111:2511:4912:1312:3713:0113:25

48 of 48 minutes covered

Midday of Thursday 16 September

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:49  12:37 madhyāhna ends
11:0111:2511:4912:1312:3713:0113:25

0 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 00:35 on Wed 15 Sep to 00:08 on Thu 16 Sep.

    1926-09-14T16:34:38Z → 1926-09-15T16:07:45Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 15th, 11:49–12:37 on the 16th.

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

  3. 03

    Rule

    Aṣṭamī must be present during madhyāhna. It covers 48 of 48 minutes on the 15th and 0 of 48 on the 16th.

    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 40483 s

  5. 05

    Ruling

    Rādhāṣṭamī, Baoding, 1926: Wednesday 15 September.

    confidence: determinate

Say it like this

In Baoding, Rādhāṣṭamī 1926 falls on Wednesday 15 September. Aṣṭamī runs from 00:35 on Wed 15 Sep to 00:08 on Thu 16 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1926/radhashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingWed 15 Sep
Ahargaṇa, classicalDisc centre, no refractionWed 15 Sep
compat-drikpanchangComparison profileWed 15 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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles08:35 → 08:0811:2448 min11:240 min14 Sep
Chicago11:35 → 11:0812:2248 min12:220 min14 Sep
Jersey City12:35 → 12:0812:2841 min12:270 min14 Sep
Port of Spain12:35 → 12:0811:380 min11:3730 min15 Sep
London17:35 → 17:0812:320 min12:3148 min15 Sep
Durban18:35 → 18:0811:280 min11:2848 min15 Sep
Dubai20:35 → 20:0811:500 min11:5048 min15 Sep
Delhi22:05 → 21:3811:530 min11:5248 min15 Sep
Kolkata22:05 → 21:3811:080 min11:0848 min15 Sep
Singapore23:35 → 23:0811:360 min11:3648 min15 Sep
Sydney02:35 → 02:0811:270 min11:2748 min15 Sep
Suva04:35 → 04:0811:380 min11:3848 min15 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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