Ruling · Akhaṇḍa Dvādaśī · 1915

Saturday 18 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 33 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 Friday 17 December

Qualifies with 48 of 48 minutes. Not taken.

madhyāhna begins 11:50  12:38 madhyāhna ends
Dvādaśī begins 11:17:06
11:0211:2611:5012:1412:3813:0213:26

48 of 48 minutes covered

Midday of Saturday 18 December

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

madhyāhna begins 11:50  12:38 madhyāhna ends
Dvādaśī ends 13:22:33
11:0211:2611:5012:1412:3813:0213:26

48 of 48 minutes covered

Dvādaśī presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Dvādaśī runs from 11:17 on Fri 17 Dec to 13:23 on Sat 18 Dec.

    1915-12-17T03:17:06Z → 1915-12-18T05:22:34Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:50–12:38 on the 17th, 11:50–12:38 on the 18th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Dvādaśī must be present during madhyāhna. It covers 48 of 48 minutes on the 17th and 48 of 48 on the 18th.

    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 1959 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 1915: Saturday 18 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 1915 falls on Saturday 18 December. Dvādaśī runs from 11:17 on Fri 17 Dec to 13:23 on Sat 18 Dec 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/1915/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSat 18 Dec
Ahargaṇa, classicalDisc centre, no refractionSat 18 Dec
compat-drikpanchangComparison profileSat 18 Dec
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/akhanda-dvadashi · ruleset 2026.3-draft

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

“S 12 Matsya dvadasi, Akhanda dvadasi (paraviddha), Vyanjana dvadasi & Dana dvadasi (Orissa).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceDvādaśīMadhyāhna 17thCoveredMadhyāhna 18thCoveredRuled
Los Angeles19:17 → 21:2311:2548 min11:250 min17 Dec
Chicago21:17 → 23:2311:2248 min11:230 min17 Dec
Jersey City22:17 → 00:2311:2848 min11:290 min17 Dec
Port of Spain23:17 → 01:2311:3848 min11:380 min17 Dec
London03:17 → 05:2311:3248 min11:330 min17 Dec
Durban05:17 → 07:2311:2848 min11:280 min17 Dec
Dubai06:58 → 09:0411:3148 min11:320 min17 Dec
Delhi08:47 → 10:5311:5348 min11:530 min17 Dec
Kolkata08:47 → 10:5311:0848 min11:090 min17 Dec
Singapore10:17 → 12:2311:3648 min11:3746 min18 Dec
Sydney13:17 → 15:2311:270 min11:2748 min18 Dec
Suva15:17 → 17:2311:380 min11:3848 min18 Dec
Profile · tradition
pac-rp@2026.1 · smarta
Rule
akhanda-dvadashi@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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