Ruling · Akhaṇḍa Dvādaśī · 1900

Monday 3 December

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 385 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 Monday 3 December

Taken. The only midday Dvādaśī reaches.

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

48 of 48 minutes covered

Midday of Tuesday 4 December

Dvādaśī is absent from madhyāhna. Not taken.

madhyāhna begins 11:49  12:37 madhyāhna ends
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 05:24 on Mon 3 Dec to 02:37 on Tue 4 Dec.

    1900-12-02T21:18:57Z → 1900-12-03T18:31:47Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:49–12:37 on the 3rd, 11:49–12:37 on the 4th.

    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 3rd and 0 of 48 on the 4th.

    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 23088 s

  5. 05

    Ruling

    Akhaṇḍa Dvādaśī, Baoding, 1900: Monday 3 December.

    confidence: determinate

Say it like this

In Baoding, Akhaṇḍa Dvādaśī 1900 falls on Monday 3 December. Dvādaśī runs from 05:24 on Mon 3 Dec to 02:37 on Tue 4 Dec and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1900/akhanda-dvadashi · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingMon 3 Dec
Ahargaṇa, classicalDisc centre, no refractionMon 3 Dec
compat-drikpanchangComparison profileMon 3 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 2ndCoveredMadhyāhna 3rdCoveredRuled
Los Angeles13:19 → 10:3211:180 min11:190 min3 Dec
Chicago15:19 → 12:3211:160 min11:1648 min3 Dec
Jersey City16:19 → 13:3211:220 min11:2248 min3 Dec
Port of Spain17:19 → 14:3211:320 min11:3248 min3 Dec
London21:19 → 18:3211:260 min11:2648 min3 Dec
Durban22:49 → 20:0210:510 min10:5248 min3 Dec
Dubai01:00 → 22:1311:250 min11:2548 min3 Dec
Delhi02:40 → 23:5311:370 min11:3848 min3 Dec
Kolkata02:40 → 23:5310:530 min10:5348 min3 Dec
Singapore04:14 → 01:2711:250 min11:2548 min3 Dec
Sydney07:19 → 04:3211:210 min11:2148 min3 Dec
Suva09:14 → 06:2711:270 min11:2748 min3 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

About Ahargaṇa