Ruling · Rādhāṣṭamī · 1927

Sunday 4 September

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 267 minutes.

Decide it for

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 Sunday 4 September

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:53  12:41 madhyāhna ends
11:0511:2911:5312:1712:4113:0513:29

48 of 48 minutes covered

Midday of Monday 5 September

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:53  12:41 madhyāhna ends
11:0511:2911:5312:1712:4113:0513:29

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 05:53 on Sun 4 Sep to 07:26 on Mon 5 Sep.

    1927-09-03T21:53:02Z → 1927-09-04T23:25:59Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:53–12:41 on the 4th, 11:53–12:41 on the 5th.

    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 4th and 0 of 48 on the 5th.

    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 16013 s

  5. 05

    Ruling

    Rādhāṣṭamī, Baoding, 1927: Sunday 4 September.

    confidence: determinate

Say it like this

In Baoding, Rādhāṣṭamī 1927 falls on Sunday 4 September. Aṣṭamī runs from 05:53 on Sun 4 Sep to 07:26 on Mon 5 Sep and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1927/radhashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 4 Sep
Ahargaṇa, classicalDisc centre, no refractionSun 4 Sep
compat-drikpanchangComparison profileSun 4 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 3rdCoveredMadhyāhna 4thCoveredRuled
Los Angeles13:53 → 15:2611:280 min11:2848 min4 Sep
Chicago16:53 → 18:2612:260 min12:2548 min4 Sep
Jersey City17:53 → 19:2612:310 min12:3148 min4 Sep
Port of Spain17:53 → 19:2611:420 min11:4148 min4 Sep
London22:53 → 00:2612:360 min12:3548 min4 Sep
Durban23:53 → 01:2611:320 min11:3148 min4 Sep
Dubai01:53 → 03:2611:540 min11:5448 min4 Sep
Delhi03:23 → 04:5611:570 min11:5648 min4 Sep
Kolkata03:23 → 04:5611:120 min11:1248 min4 Sep
Singapore04:53 → 06:2611:400 min11:4048 min4 Sep
Sydney07:53 → 09:2611:310 min11:3148 min4 Sep
Suva09:53 → 11:2611:420 min11:4248 min4 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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