Ruling · Akhaṇḍa Dvādaśī · 1918

Sunday 15 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 22 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 Saturday 14 December

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:48  12:36 madhyāhna ends
11:0011:2411:4812:1212:3613:0013:24

0 of 48 minutes covered

Midday of Sunday 15 December

Taken. Dvādaśī reaches neither midday; the rule takes the second day.

madhyāhna begins 11:49  12:37 madhyāhna ends
Dvādaśī ends 11:26:58
11:0111:2511:4912:1312:3713:0113:25

0 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 14:17 on Sat 14 Dec to 11:27 on Sun 15 Dec.

    1918-12-14T06:17:03Z → 1918-12-15T03:26:58Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:48–12:36 on the 14th, 11:49–12:37 on the 15th.

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

  3. 03

    Rule

    Dvādaśī must be present during madhyāhna. It covers 0 of 48 minutes on the 14th and 0 of 48 on the 15th.

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

  4. 04

    Tie-break

    Neither midday qualifies. The rule takes the second day.

    priority: paraviddha → second-day · margin 1316 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 1918: Sunday 15 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 1918 falls on Sunday 15 December. Dvādaśī runs from 14:17 on Sat 14 Dec to 11:27 on Sun 15 Dec, and reaches madhyāhna on neither day.

ahargana.org/baoding/festivals/1918/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 15 Dec
Ahargaṇa, classicalDisc centre, no refractionSun 15 Dec
compat-drikpanchangComparison profileSun 15 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 14thCoveredMadhyāhna 15thCoveredRuled
Los Angeles22:17 → 19:2711:2448 min11:240 min14 Dec
Chicago00:17 → 21:2711:2148 min11:220 min14 Dec
Jersey City01:17 → 22:2711:2748 min11:270 min14 Dec
Port of Spain02:17 → 23:2711:3748 min11:370 min14 Dec
London06:17 → 03:2711:3148 min11:310 min14 Dec
Durban08:17 → 05:2711:2648 min11:270 min14 Dec
Dubai09:58 → 07:0811:3048 min11:310 min14 Dec
Delhi11:47 → 08:5711:5148 min11:520 min14 Dec
Kolkata11:47 → 08:5711:078 min11:070 min14 Dec
Singapore13:17 → 10:2711:350 min11:350 min15 Dec
Sydney16:17 → 13:2711:260 min11:2648 min15 Dec
Suva18:17 → 15:2711:370 min11:3748 min15 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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