Ruling · Rādhāṣṭamī · 2034

Thursday 21 September

Determinatein Daegu, under the Rashtriya Panchang method. Clear of every threshold by 114 minutes.

Decide it for

DaeguDelhiKolkataSingaporeSydneyJersey City

35°52′ N 128°36′ E · Asia/Seoul · GeoNames 1835329

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Wednesday 20 September

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:55  12:43 madhyāhna ends
11:0711:3111:5512:1912:4313:0713:31

0 of 48 minutes covered

Midday of Thursday 21 September

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:55  12:43 madhyāhna ends
11:0711:3111:5512:1912:4313:0713:31

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 14:37 on Wed 20 Sep to 16:35 on Thu 21 Sep.

    2034-09-20T05:37:10Z → 2034-09-21T07:35:01Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:55–12:43 on the 20th, 11:55–12:43 on the 21st.

    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 20th and 48 of 48 on the 21st.

    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 6859 s

  5. 05

    Ruling

    Rādhāṣṭamī, Daegu, 2034: Thursday 21 September.

    confidence: determinate

Say it like this

In Daegu, Rādhāṣṭamī 2034 falls on Thursday 21 September. Aṣṭamī runs from 14:37 on Wed 20 Sep to 16:35 on Thu 21 Sep and covers all of madhyāhna that midday.

ahargana.org/daegu/festivals/2034/radhashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 21 Sep
Ahargaṇa, classicalDisc centre, no refractionThu 21 Sep
compat-drikpanchangComparison profileThu 21 Sep
No institution has a recorded ruling for Daegu.

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 20thCoveredMadhyāhna 21stCoveredRuled
Los Angeles22:37 → 00:3512:2248 min12:220 min20 Sep
Chicago00:37 → 02:3512:2048 min12:190 min20 Sep
Jersey City01:37 → 03:3512:2548 min12:250 min20 Sep
Port of Spain01:37 → 03:3511:3548 min11:350 min20 Sep
London06:37 → 08:3512:2948 min12:290 min20 Sep
Durban07:37 → 09:3511:2648 min11:250 min20 Sep
Dubai09:37 → 11:3511:4848 min11:480 min20 Sep
Delhi11:07 → 13:0511:5048 min11:5048 min20 Sep
Kolkata11:07 → 13:0511:0647 min11:0648 min21 Sep
Singapore13:37 → 15:3512:340 min12:3448 min21 Sep
Sydney15:37 → 17:3511:250 min11:2548 min21 Sep
Suva17:37 → 19:3511:360 min11:3648 min21 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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