Ruling · Mahāṣṭamī (Durgāṣṭamī) · 1988

Tuesday 18 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 121 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 Tuesday 18 October

Taken. The only midday Aṣṭamī reaches.

madhyāhna begins 11:39  12:27 madhyāhna ends
10:5111:1511:3912:0312:2712:5113:15

48 of 48 minutes covered

Midday of Wednesday 19 October

Aṣṭamī is absent from madhyāhna. Not taken.

madhyāhna begins 11:39  12:27 madhyāhna ends
10:5111:1511:3912:0312:2712:5113:15

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 09:38 on Tue 18 Oct to 08:16 on Wed 19 Oct.

    1988-10-18T01:38:20Z → 1988-10-19T00:15:52Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:39–12:27 on the 18th, 11:39–12:27 on the 19th.

    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 18th and 0 of 48 on the 19th.

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

  4. 04

    Tie-break

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

    priority: paraviddha → only-day · margin 7243 s

  5. 05

    Ruling

    Mahāṣṭamī, Baoding, 1988: Tuesday 18 October.

    confidence: determinate

Say it like this

In Baoding, Mahāṣṭamī (Durga Ashtami) 1988 falls on Tuesday 18 October. Aṣṭamī runs from 09:38 on Tue 18 Oct to 08:16 on Wed 19 Oct and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1988/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingTue 18 Oct
Ahargaṇa, classicalDisc centre, no refractionTue 18 Oct
compat-drikpanchangComparison profileTue 18 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/mahashtami · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Śukla · Aṣṭamī
Kāla
Madhyāhna
Priority
Paraviddhā
Tie-break
Second day
Reference
CRC 1955, p. 104

“S 8 Mahastami (paraviddha)” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceAṣṭamīMadhyāhna 18thCoveredMadhyāhna 19thCoveredRuled
Los Angeles18:38 → 17:1612:1448 min12:140 min18 Oct
Chicago20:38 → 19:1612:1148 min12:110 min18 Oct
Jersey City21:38 → 20:1612:1748 min12:170 min18 Oct
Port of Spain21:38 → 20:1611:2748 min11:270 min18 Oct
London02:38 → 01:1612:2148 min12:210 min18 Oct
Durban03:38 → 02:1611:1748 min11:170 min18 Oct
Dubai05:38 → 04:1611:4048 min11:400 min18 Oct
Delhi07:08 → 05:4611:4248 min11:420 min18 Oct
Kolkata07:08 → 05:4610:5848 min10:570 min18 Oct
Singapore09:38 → 08:1612:2648 min12:260 min18 Oct
Sydney11:38 → 10:1611:1726 min11:160 min18 Oct
Suva13:38 → 12:1611:280 min11:2748 min19 Oct
Profile · tradition
pac-rp@2026.1 · smarta
Rule
mahashtami@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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