Ruling · Akṣaya Navamī (Amla Navami) · 1930

Thursday 30 October

Boundaryin Baoding, under the Rashtriya Panchang method. Both forenoons qualify and the rule does not say which to take. Say “contested”.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two forenoons

One ghaṭī is 24 minutes. Pūrvāhṇa is first 5 of 15 day muhūrtas.

Forenoon of Thursday 30 October

Taken. Both forenoons qualify; the rule is silent, and this one is covered longer.

06:42 sunrisepūrvāhṇa ends 10:15
Navamī begins 06:32:01
06:1807:0607:5408:4209:3010:18

213 of 213 minutes covered

Forenoon of Friday 31 October

Qualifies with 138 of 212 minutes. Not taken.

06:43 sunrisepūrvāhṇa ends 10:16
Navamī ends 09:01:42
06:1907:0707:5508:4309:3110:19

138 of 212 minutes covered, the first 138

Navamī presentPūrvāhṇa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Navamī runs from 06:32 on Thu 30 Oct to 09:02 on Fri 31 Oct.

    1930-10-29T22:32:02Z → 1930-10-31T01:01:42Z

  2. 02

    Kāla

    Pūrvāhṇa is first 5 of 15 day muhūrtas: 06:42–10:15 on the 30th, 06:43–10:16 on the 31st.

    purvahna: day-muhurta-1-5 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Navamī must be present during pūrvāhṇa. It covers 213 of 213 minutes on the 30th and 138 of 212 on the 31st.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Both forenoons qualify and the rule marks neither. The one covered longer is ruled, as a boundary.

    priority: unstated → greater-coverage · margin 613 s

  5. 05

    Ruling

    Akṣaya Navamī, Baoding, 1930: Thursday 30 October.

    confidence: boundary (tie-break-unstated)

Say it like this

In Baoding, Akṣaya Navamī (Amla Navami) 1930 falls on Thursday 30 October. Navamī runs from 06:32 on Thu 30 Oct to 09:02 on Fri 31 Oct and covers all of pūrvāhṇa that forenoon. It also reaches the next forenoon for 138 minutes; the rule does not say which to take, and the one covered longer is ruled: treat the date as contested.

ahargana.org/baoding/festivals/1930/akshaya-navami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingThu 30 Oct
Ahargaṇa, classicalDisc centre, no refractionThu 30 Oct
compat-drikpanchangComparison profileThu 30 Oct
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/akshaya-navami · ruleset 2026.3-draft

Month
Kārtika, amānta
Pakṣa · aṅga
Śukla · Navamī
Kāla
Pūrvāhṇa
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 104

“S 9 Aksaya navami (purvahnavyapini), Jagaddhatri puja (Bengal), (udayavyapini one muhurta), Anla navami (Orissa), Durga navami (purvaviddha), Gauri vrata.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceNavamīSunrise 29thCoveredSunrise 31stCoveredRuled
Los Angeles14:32 → 17:0206:100 min06:120 min30 Oct
Chicago16:32 → 19:0206:190 min06:210 min30 Oct
Jersey City17:32 → 20:0206:230 min06:250 min30 Oct
Port of Spain18:32 → 21:0205:570 min05:570 min30 Oct
London22:32 → 01:0206:480 min06:510 min30 Oct
Durban00:32 → 03:0205:050 min05:030 min30 Oct
Dubai02:32 → 05:0206:240 min06:250 min30 Oct
Delhi04:02 → 06:3206:310 min06:320 min30 Oct
Kolkata04:02 → 06:3205:390 min05:4051 min30 Oct
Singapore05:32 → 08:0205:460 min05:46135 min30 Oct
Sydney08:32 → 11:0204:590 min04:57268 min31 Oct
Suva10:32 → 13:0205:290 min05:28255 min31 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
akshaya-navami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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