Ruling · Mahāṣṭamī (Durgāṣṭamī) · 2026

Monday 19 October

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 40 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 18 October

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:39  12:27 madhyāhna ends
Aṣṭamī begins 10:58:38
10:5111:1511:3912:0312:2712:5113:15

48 of 48 minutes covered

Midday of Monday 19 October

Taken. Both middays qualify; the rule takes the second.

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

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 10:59 on Sun 18 Oct to 13:22 on Mon 19 Oct.

    2026-10-18T02:58:39Z → 2026-10-19T05:22:16Z

  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 48 of 48 on the 19th.

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

  4. 04

    Tie-break

    Both middays qualify. Paraviddhā: the second is taken.

    priority: paraviddha → paraviddha · margin 2427 s

  5. 05

    Ruling

    Mahāṣṭamī, Baoding, 2026: Monday 19 October.

    confidence: determinate

Say it like this

In Baoding, Mahāṣṭamī (Durga Ashtami) 2026 falls on Monday 19 October. Aṣṭamī runs from 10:59 on Sun 18 Oct to 13:22 on Mon 19 Oct and covers all of madhyāhna that midday. It also reaches the previous midday for 48 minutes; by the rule the second midday is taken.

ahargana.org/baoding/festivals/2026/mahashtami · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 19 Oct
Ahargaṇa, classicalDisc centre, no refractionMon 19 Oct
compat-drikpanchangComparison profileMon 19 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 Angeles19:59 → 22:2212:1448 min12:140 min18 Oct
Chicago21:59 → 00:2212:1148 min12:110 min18 Oct
Jersey City22:59 → 01:2212:1748 min12:170 min18 Oct
Port of Spain22:59 → 01:2211:2748 min11:270 min18 Oct
London03:59 → 06:2212:2148 min12:210 min18 Oct
Durban04:59 → 07:2211:1748 min11:170 min18 Oct
Dubai06:59 → 09:2211:4048 min11:400 min18 Oct
Delhi08:29 → 10:5211:4248 min11:420 min18 Oct
Kolkata08:29 → 10:5210:5848 min10:570 min18 Oct
Singapore10:59 → 13:2212:2648 min12:2648 min19 Oct
Sydney13:59 → 16:2212:170 min12:1748 min19 Oct
Suva14:59 → 17:2211:280 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